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Introductory General Chemistry MCQ

1. Aldosterone plays a primary role in adjustment of ____________ excretion.

Sodium

Adrenal cortex

Tubules

All of this

Answer

Correct Answer: Sodium

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2. What is electronegativity?

The amount of neutrons in an atom

A measure of the ability of an atom in a molecule to draw bonding electrons to itself

The amount of protons in an atom

The amount of electrons in an atom

Answer

Correct Answer: A measure of the ability of an atom in a molecule to draw bonding electrons to itself

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3. How much energy is needed to accelerate an electron by one volt potential difference?

1.602 x 10-19 C

1.602 x 10-12 C

1.602 x 1019 C

1.602 x 10-29 C

Answer

Correct Answer: 1.602 x 10-19 C

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4. What does electron configuration refer to?

The energy an electron has

The number of protons in an element's nucleus

The element's position on the periodic table

The particular distribution of electrons among available subshells

Answer

Correct Answer: The particular distribution of electrons among available subshells

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5. Electron capture is the decay of an unstable nucleus by:

Capturing an electron from an inner orbital of an atom

Losing or gaining neutrons

Splitting into smaller atoms

Gaining or losing protons

Answer

Correct Answer: Capturing an electron from an inner orbital of an atom

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6. Electron affinity is the energy change for the process of adding an electron to a:

Neutral atom in the gaseous state

Negative ion in the gaseous state

Atom in the liquid state

Positive ion in the gaseous state

Answer

Correct Answer: Neutral atom in the gaseous state

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7. What is the range of frequencies or wavelengths of electromagnetic radiation called?

Electromagnetic radiation

Electromagnetic spectrum

Electromagnetic field

Electromagnetic pulse

Answer

Correct Answer: Electromagnetic spectrum

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8. What is an electrolytic cell?

A cell that uses electrical energy

A cell powered by a battery

A cell in which an electric current drives an otherwise nonspontaneous reaction.

A cell that produces electrical energy

Answer

Correct Answer: A cell in which an electric current drives an otherwise nonspontaneous reaction.

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9. What is an elastomer?

A elastic or rubbery type of polymer

A solid type of polymer

A liquid type of polymer

A brittle type of polymer

Answer

Correct Answer: A elastic or rubbery type of polymer

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10. What is Effusion?

The process in which a gas flows through a small hole in a container

The process in which a solid flows through a small hole in a container

The process in which a gas flows out of a container

The process in which a liquid flows through a small hole in a container

Answer

Correct Answer: The process in which a gas flows through a small hole in a container

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11. Effective nuclear charge is equal to the _______.

Nuclear charge

Electron charge

Intervening electron distribution

Proton charge

Answer

Correct Answer: Nuclear charge

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12. What is electron configuration?

Description of the population of the electronic energy sublevels of an atom.

The way that electrons are arranged in an atom.

The amount of electrons in an atom.

The energy that an electron has.

Answer

Correct Answer: Description of the population of the electronic energy sublevels of an atom.

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13. What surrounds the atomic nucleus in an electron cloud?

Atoms

Protons

Neutrons

Electrons

Answer

Correct Answer: Electrons

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14. What is the electron cloud?

Region of negative charge surrounding the atomic nucleus that has a high probability of containing electrons

Area in an atom where the electrons are found

Positively charged area surrounding the nucleus

Region where the protons and neutrons are located

Answer

Correct Answer: Region of negative charge surrounding the atomic nucleus that has a high probability of containing electrons

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15. What does the 'K' in K or L shell electron stand for?

Kilo

Kelvin

Kinetic

Krypton

Answer

Correct Answer: Kinetic

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16. What does EC stand for in electron capture?

Event Horizon Telescope

Extraterrestrial life

Electron capture

Elementary Charge

Answer

Correct Answer: Electron capture

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17. What is the electron affinity?

Measure of the ability of an atom to donate an electron.

The energy needed to remove an electron from an atom.

The charge of an electron.

Measure of the ability of an atom to accept an electron.

Answer

Correct Answer: Measure of the ability of an atom to accept an electron.

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18. What does electron affinity measure?

The ability of an atom to donate an electron.

The energy released when an electron is added to a gaseous atom.

The ability of an atom to repel an electron.

The ability of an atom to accept an electron.

Answer

Correct Answer: The ability of an atom to accept an electron.

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19. What is an electron?

An unstable positively charged subatomic particle.

A stable positively charged subatomic particle.

A stable negatively charged subatomic particle.

A unstable negatively charged subatomic particle.

Answer

Correct Answer: A stable negatively charged subatomic particle.

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20. What is electromagnetic radiation?

Self propagating energy that has electric and magnetic field components

A form of light that is man-made

A type of radiation that comes from the sun

A machine that uses electricity and magnetism to power itself

Answer

Correct Answer: Self propagating energy that has electric and magnetic field components

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21. What is self propagating energy that has electric and magnetic field components?

Electromagnetic radiation

Amperes

Volts

Electric current

Answer

Correct Answer: Electromagnetic radiation

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22. What does electrolytic cell enable?

Oxidation reaction

Reduction reaction

Redox reaction

Neutralization reaction

Answer

Correct Answer: Redox reaction

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23. What is an electrolyte?

A solution that conducts electricity.

A substance that forms ions in aqueous solution.

A solution that contains a measurable amount of dissolved ions.

A substance that dissociates in water to yield cations and anions.

Answer

Correct Answer: A substance that forms ions in aqueous solution.

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24. What is electrolysis?

A unit of electric current

A device used for electroplating

A machine that helps people with disabilities to walk

Passage of direct current through an ion-conducting solution, producing a chemical change at the electrodes.

Answer

Correct Answer: Passage of direct current through an ion-conducting solution, producing a chemical change at the electrodes.

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25. What is the anode or cathode of an electrical cell called?

Eletrod

Elecrode

Electroode

Electrde

Answer

Correct Answer: Electroode

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26. What is an electrode?

A component in an electrical circuit that is designed to introduce resistance

A device used to produce an electric current.

A device used to measure electrical potential

The anode or cathode of an electrical cell.

Answer

Correct Answer: The anode or cathode of an electrical cell.

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27. What is electromotive force?

A device that uses an electric potential to generate magnetism

The force exerted by an electric field on charged particles

The potential difference between two conductors

The electric potential generated by either an electrochemical cell or changing magnetic field.

Answer

Correct Answer: The electric potential generated by either an electrochemical cell or changing magnetic field.

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28. What does EMF stand for?

Electric magnetic field

Electric motor force

Electromotive force

Electrochemical field

Answer

Correct Answer: Electromotive force

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29. What is the scientific study of reactions and species formed at the interface between an electrolyte and a conductor, where electron transfer occurs called?

Electrochemistry

Electrolysis

Electron microscopy

Electromagnetism

Answer

Correct Answer: Electrochemistry

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30. What is an electrochemical cell?

A device that generates light

A device that generates heat

A device that generates electricity

A device that generates a potential difference between electrodes via chemical reactions.

Answer

Correct Answer: A device that generates a potential difference between electrodes via chemical reactions.

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31. What does electrical resistivity measure?

How much a material resists carrying an electrical current.

The passage of an electric current through a material

The flow of electrons in a material.

The opposition by a body or substance to the passage of an electric current through it

Answer

Correct Answer: How much a material resists carrying an electrical current.

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32. What is electrical resistivity?

A measure of how well a material can conduct heat.

A measure of how much a material resists carrying an electrical current.

The ability of a material to conduct an electric current.

The SI unit of electrical conductivity

Answer

Correct Answer: A measure of how much a material resists carrying an electrical current.

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33. What is electrical conductivity?

The transfer of electrons from one atom to another

A measure of a substance's ability to carry an electrical current.

The flow of electrical current in a material

A measure of a material's resistance to the flow of an electric current.

Answer

Correct Answer: A measure of a substance's ability to carry an electrical current.

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34. What is elasticity?

The ability to be stretched without breaking.

The ability to absorb shocks.

The ability to deform without breaking.

The ability to return to original shape after deformation.

Answer

Correct Answer: The ability to return to original shape after deformation.

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35. What is the symbol for einsteinium?

Answer

Correct Answer: Es

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36. What is the definition of effusion?

Melting of a solid into a liquid.

Gradual changes that take place in the universe.

Diffusion of a liquid in a gas.

Movement of gas through a pore or capillary into a vacuum or another gas.

Answer

Correct Answer: Movement of gas through a pore or capillary into a vacuum or another gas.

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37. What is the process by which a hydrate loses water of hydration called?

Precipitation

Catalysis

Hydrolysis

Efflorescence

Answer

Correct Answer: Efflorescence

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38. Efflorescence is the process by which a hydrate...?

Remains unchanged

Gains water from the atmosphere

Absorbs water from the atmosphere

Loses water of hydration

Answer

Correct Answer: Loses water of hydration

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39. What does "effervescence" mean?

Foaming or bubbling when gas is evolved by a liquid or solid

A sudden burst of energy or enthusiasm

A dry, hacking cough

A state of happiness or elation

Answer

Correct Answer: Foaming or bubbling when gas is evolved by a liquid or solid

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40. What is effective nuclear charge?

Number of electrons in an atom.

Number of protons in the nucleus of an atom.

Electron configuration of an atom.

Net charge an electron experiences in an atom that has multiple electrons.

Answer

Correct Answer: Net charge an electron experiences in an atom that has multiple electrons.

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41. What is a disaccharide?

Carbohydrate formed when two monosaccharides bond, removing a molecule of water from their structure.

Polysaccharide

Monosaccharide

Carbohydrate formed when two monosaccharides bond, releasing a molecule of water from their structure.

Answer

Correct Answer: Carbohydrate formed when two monosaccharides bond, removing a molecule of water from their structure.

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42. What is a carbohydrate formed when two monosaccharides bond, removing a molecule of water from their structure called?

Monosaccharide

Trisaccharide

Polysaccharide

Disaccharide

Answer

Correct Answer: Disaccharide

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43. What is the constant value in a direct proportion?

Sum

Variable

Ratio

Product

Answer

Correct Answer: Ratio

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44. What is the direct proportion?

Relation between two variables such that their sum is a constant value

Relation between two variables such that their ratio is a constant value

Relation between two variables such that their product is a constant value

Relation between two variables such that their difference is a constant value

Answer

Correct Answer: Relation between two variables such that their ratio is a constant value

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45. What is a diprotic acid?

Compound that cannot donate any hydrogen atoms or protons per molecule in an aqueous solution

Acid that can donate two hydrogen atoms or protons per molecule in an aqueous solution

Acid that can only donate one hydrogen atom or proton per molecule in an aqueous solution

Base that can donate two hydrogen atoms or protons per molecule in an aqueous solution

Answer

Correct Answer: Acid that can donate two hydrogen atoms or protons per molecule in an aqueous solution

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46. What is the dipole moment?

Measure of the separation of two like electrical charges.

Measure of the separation of two magnetic poles.

Measure of the separation of two opposite electrical charges.

Unit of electric charge.

Answer

Correct Answer: Measure of the separation of two opposite electrical charges.

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47. What is a dipole?

A unit of measurement for electrical charge

An electric circuit with two equal and opposite charges

A separation of electrical or magnetic charges

A device that produces electricity

Answer

Correct Answer: A separation of electrical or magnetic charges

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48. What does it mean when a solution is diluted?

There is no solute in the solution

There is a small amount of solute relative to the amount of solvent

There is a large amount of solute relative to the amount of solvent

The amount of solute is equal to the amount of solvent

Answer

Correct Answer: There is a small amount of solute relative to the amount of solvent

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49. What is the definition of diffusion?

The movement of a fluid from a region of higher concentration to lower concentration.

The movement of a solid from a region of lower concentration to higher concentration.

The movement of a solid from a region of higher concentration to lower concentration.

The movement of a fluid from a region of lower concentration to higher concentration.

Answer

Correct Answer: The movement of a fluid from a region of higher concentration to lower concentration.

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50. What is the antonym for diamagnetic?

Ferromagnetic

Diamagnetic

Diametral

Paramagnetic

Answer

Correct Answer: Paramagnetic

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51. What does diamagnetic mean?

Contains unpaired electrons

Not attracted to a magnetic field

Does not contain unpaired electrons

Attracted to a magnetic field

Answer

Correct Answer: Not attracted to a magnetic field

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52. What is the general structure of a detergent?

R-N2+, Na+

R-NH3, Na+

R-SO4-, Na+

R-OH, Na+

Answer

Correct Answer: R-SO4-, Na+

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53. What is the phase change from vapor to solid called?

Desublimation

Freezing

Condensation

Deposition

Answer

Correct Answer: Desublimation

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54. What is a desiccant?

A type of cheese

A device used to measure humidity

A plant with fleshy leaves

A chemical agent that picks up water.

Answer

Correct Answer: A chemical agent that picks up water.

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55. What is a derived unit?

An SI unit made from one or more base units (e.g., Newton is kg·m/s2)

A unit made from a combination of the base units (e.g., Newton is kg·m/s2)

A unit made from a combination of the derived units (e.g., Newton is kg·m/s2)

An SI unit made from a combination of the base units (e.g., Newton is kg·m/s2)

Answer

Correct Answer: An SI unit made from a combination of the base units (e.g., Newton is kg·m/s2)

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56. What is deprotonation?

A chemical reaction in which a radical removes a proton from a molecule

A chemical reaction in which a molecule removes a proton from a radical

A chemical reaction in which a proton removes a molecule from a radical

A chemical reaction in which a proton removes a radical from a molecule

Answer

Correct Answer: A chemical reaction in which a radical removes a proton from a molecule

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57. What does deposition mean?

Movement of water

Removing of water

The process of erosion

Settling of sediment or particles onto a surface or the phase change from the vapor to solid phase.

Answer

Correct Answer: Settling of sediment or particles onto a surface or the phase change from the vapor to solid phase.

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58. What is the definition for a dependent variable?

The variable being measured in response to changing the dependent variable, with no relation to the independent variable.

The variable being changed in order to measure the response of the dependent variable.

The variable being measured in response to changing the dependent variable, which is also the variable being changed.

The variable being measured in response to changing the independent variable.

Answer

Correct Answer: The variable being measured in response to changing the independent variable.

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59. What is the dependent variable?

The variable being tested in order to change the independent variable.

The variable not being measured.

The variable being measured (tested) regardless of changing the independent variable.

The variable being measured (tested) in response to changing the independent variable.

Answer

Correct Answer: The variable being measured (tested) in response to changing the independent variable.

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60. What is a delocalized electron?

An electron that is not moving

An electron that is not associated with a particular atom or single covalent bond

An electron that is associated with a particular atom or single covalent bond

An electron that is not associated with a particular ion, atom, or molecule

Answer

Correct Answer: An electron that is not associated with a particular atom or single covalent bond

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61. What is deliquescence?

Process by which a solute dissolves in a solvent.

Process by which a salt loses its water of crystallization.

Process by which a soluble substance picks up water vapor from the atmosphere to form a solution.

Process by which a solvent evaporates to leave a residue of solute.

Answer

Correct Answer: Process by which a soluble substance picks up water vapor from the atmosphere to form a solution.

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62. What is a dehydration reaction?

Chemical reaction between two compounds in which one of the products is an acid

Chemical reaction between two compounds in which one of the products is water

Chemical reaction between two compounds in which one of the products is oxygen

Chemical reaction between two compounds in which one of the products is a salt

Answer

Correct Answer: Chemical reaction between two compounds in which one of the products is water

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63. What is the name for a chemical reaction in which one of the products is water?

Hydrolysis Reaction

Double Replacement Reaction

Dehydration Reaction

Synthesis Reaction

Answer

Correct Answer: Dehydration Reaction

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64. What is deflagration?

Type of combustion in which flame propagation is greater than 100 m/s and overpressure is greater than 0.5 bar.

Type of combustion in which flame propagation is less than 100 m/s and overpressure is greater than 0.5 bar.

Type of combustion in which flame propagation is greater than 100 m/s and overpressure is less than 0.5 bar.

Type of combustion in which flame propagation is less than 100 m/s and overpressure is less than 0.5 bar.

Answer

Correct Answer: Type of combustion in which flame propagation is less than 100 m/s and overpressure is less than 0.5 bar.

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65. What is decantation?

A dance move

A type of alcohol

A unit of measurement

Separating mixtures by removing the liquid layer from a precipitate

Answer

Correct Answer: Separating mixtures by removing the liquid layer from a precipitate

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66. What is the method of separating mixtures by removing the liquid layer from a precipitate called?

Distillation

Filtration

Decantation

Mixture

Answer

Correct Answer: Decantation

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67. What does the de Broglie equation describe?

The wave properties of matter

Planck's constant

The properties of an electron

The speed of light

Answer

Correct Answer: The wave properties of matter

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68. What is a daughter isotope?

Product formed after a radioisotope (the parent) undergoes radioactive decay

Product formed after a radioisotope (the parent) undergoes nuclear fission

Product formed after a radioisotope (the parent) is bombarded by high energy particles

Product formed after a radioisotope (the parent) undergoes nuclear fusion

Answer

Correct Answer: Product formed after a radioisotope (the parent) undergoes radioactive decay

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69. What is a dative bond?

Covalent bond between atoms in which one atom provides no electrons for the bond.

Covalent bond between atoms in which one atom provides both electrons for the bond.

Covalent bond between atoms in which one atom provides one electron for the bond.

Ionic bond between atoms.

Answer

Correct Answer: Covalent bond between atoms in which one atom provides both electrons for the bond.

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70. What is the name for the element with atomic number 110?

Bohrium

Darmstadtium

Rutherfordium

Ununnilium

Answer

Correct Answer: Darmstadtium

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71. What is Dalton's Law?

The total pressure of a gaseous mixture is greater than the sum of the partial pressure of the component gases.

There is no relationship between the total pressure of a gaseous mixture and the partial pressure of the component gases.

The total pressure of a gaseous mixture equals the sum of the partial pressure of the component gases.

The total pressure of a gaseous mixture is less than the sum of the partial pressure of the component gases.

Answer

Correct Answer: The total pressure of a gaseous mixture equals the sum of the partial pressure of the component gases.

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72. What is distillation?

The process in which a liquid is vaporized then condensed

A process of making alcohol

The process of making perfume

A process of making essential oils

Answer

Correct Answer: The process in which a liquid is vaporized then condensed

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73. What is the process of distillation used for?

To separate two immiscible liquid substances

To separate solid and liquid substances

To separate two liquid substances

To separate substances of different volatilities

Answer

Correct Answer: To separate substances of different volatilities

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74. What is the value of the dissociation constant of a complex ion?

The value of the formation constant.

The reciprocal, or inverse, value of the formation constant.

The value of the molar concentration.

Zero.

Answer

Correct Answer: The reciprocal, or inverse, value of the formation constant.

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75. What is the Kd of a complex ion?

The formation constant squared

The value of the formation constant

The reciprocal, or inverse, value of the formation constant

The reciprocal of the formation constant squared

Answer

Correct Answer: The reciprocal, or inverse, value of the formation constant

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76. What is a displacement reaction?

A reaction in which an element reacts with a compound, displacing another element from it

A reaction in which an element reacts with an atom

A physical change in which the size or shape of an object changes

A chemical change in which a new substance is formed

Answer

Correct Answer: A reaction in which an element reacts with a compound, displacing another element from it

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77. What is dipole-dipole force?

Force between molecules that are neither ionic nor covalent

The force that holds together covalently bonded atoms

Attractive intermolecular force resulting from the tendency of polar molecules to align themselves

The force of attraction between ions and electrons

Answer

Correct Answer: Attractive intermolecular force resulting from the tendency of polar molecules to align themselves

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78. What is Dipole moment?

A quantitative measure of the degree of charge separation in a molecule

A measure of the amount of matter in an object

A positive integer equal to the sum of the negative integers

Answer

Correct Answer: A quantitative measure of the degree of charge separation in a molecule

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79. What is the dimensional analysis?

The study of the properties of matter in space

The method of calculation in which one carries along the units for quantities

A way of analyzing the dimension of an object

A method of calculating the rate of change

Answer

Correct Answer: The method of calculation in which one carries along the units for quantities

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80. What is the name of the method of calculation in which one carries along the units for quantities?

Addition

Multiplication

The Factor-Label Method

Dimensional analysis

Answer

Correct Answer: Dimensional analysis

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81. What is diffusion?

The process of mixing two or more substances

The process by which heat flow occurs from high to low temperature

The process whereby a gas spreads out through another gas to occupy the space uniformly

Answer

Correct Answer: The process whereby a gas spreads out through another gas to occupy the space uniformly

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82. What is the definition of a diamagnetic substance?

A substance that is not attracted by a magnetic field or is very slightly repelled by such a field.

A substance that is not affected by a magnetic field.

A substance that is attracted by a magnetic field.

A substance with unpaired electrons.

Answer

Correct Answer: A substance that is not attracted by a magnetic field or is very slightly repelled by such a field.

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83. What does dextrorotatory refer to?

A compound whose solution rotates the plane of polarized light to the left

A solid, liquid, or gas that has no plane of polarization

A compound whose solution rotates the plane of polarized light to the right

A plane of vibration that is perpendicular to the direction of propagation

Answer

Correct Answer: A compound whose solution rotates the plane of polarized light to the right

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84. What is the nucleus of a hydrogen-2 atom?

Hydrogen

Deuteron

Proton

Neutron

Answer

Correct Answer: Deuteron

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85. What does desalinating water do?

Remove ions from brackish or seawater to make it drinkable or usable for industry

Add minerals to water

Make water more acidic

Make water more basic

Answer

Correct Answer: Remove ions from brackish or seawater to make it drinkable or usable for industry

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86. What is the process of Desalination?

The process of making water salty

The process of making water clean and fit for drinking

The process of making water dirty

Remove ions from brackish (slightly salty) water or seawater, to make drinkable or industrially usable water

Answer

Correct Answer: Remove ions from brackish (slightly salty) water or seawater, to make drinkable or industrially usable water

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87. What is deposition?

The change of a solid to a gas

The change of a solid to a liquid

The change of a vapor to a solid

The change of a liquid to a solid

Answer

Correct Answer: The change of a vapor to a solid

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88. What does DNA stand for?

Deoxyribose nucleic acid

Deoxyribonucleic acid

Double nucleic acid

Dinucleotide acid

Answer

Correct Answer: Deoxyribonucleic acid

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89. What is density?

The mass per unit volume of a substance or solution.

The force exerted by a fluid against the walls of the container.

The speed at which an object heats up or cools down.

The amount of space between particles in an object.

Answer

Correct Answer: The mass per unit volume of a substance or solution.

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90. What is the product of denitrifying bacteria?

Gaseous nitrogen

Ammonia

Nitrous oxide

Nitric acid

Answer

Correct Answer: Gaseous nitrogen

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91. What is delocalized bonding?

A type of bonding in which a bonding pair of electrons is localized between two atoms

A type of bonding in which a bonding pair of electrons is spread over a number of atoms

A type of bonding in which a non-bonding pair of electrons is localized between two atoms

A type of bonding in which a non-bonding pair of electrons is spread over a number of atoms

Answer

Correct Answer: A type of bonding in which a bonding pair of electrons is spread over a number of atoms

Note: This Question is unanswered, help us to find answer for this one

92. What is the degree of ionization?

The rate of reaction of molecules with water to give ions

The fraction of molecules that react with water to give ions

The amount of water molecules that react to give ions

The number of molecules that react with water to give ions

Answer

Correct Answer: The fraction of molecules that react with water to give ions

Note: This Question is unanswered, help us to find answer for this one

93. What is a decomposition reaction?

A reaction in which a single compound reacts to give two or more substances.

A reaction in which two or more substances react to give a single compound.

A reaction in which one element replaces another in a compound.

A reaction in which two elements combine to form a compound.

Answer

Correct Answer: A reaction in which a single compound reacts to give two or more substances.

Note: This Question is unanswered, help us to find answer for this one

94. What is the definition for d-Block transition elements?

Those transition elements with an unfilled f subshell in common oxidation states

Those transition elements with an unfilled d subshell in common oxidation states

Those transition elements with an unfilled p subshell in common oxidation states

Those transition elements with an unfilled s subshell in common oxidation states

Answer

Correct Answer: Those transition elements with an unfilled d subshell in common oxidation states

Note: This Question is unanswered, help us to find answer for this one

95. What is the sum of the partial pressures of all the different gases in a mixture equal to?

The total pressure of the mixture

The mass of the mixture

The mole fraction of each gas

The density of the mixture

Answer

Correct Answer: The total pressure of the mixture

Note: This Question is unanswered, help us to find answer for this one

96. What is reached by a reaction mixture when the rates of forward and reverse reactions have become equal?

Physical equilibrium

Kinetic equilibrium

Thermodynamic equilibrium

Chemical equilibrium

Answer

Correct Answer: Chemical equilibrium

Note: This Question is unanswered, help us to find answer for this one

97. What is a chemical equation?

Physics equation

Math equation

History equation

Description of a chemical reaction, including the reactants, products, and direction of the reaction.

Answer

Correct Answer: Description of a chemical reaction, including the reactants, products, and direction of the reaction.

Note: This Question is unanswered, help us to find answer for this one

98. What is chemical energy?

Energy contained in the internal structure of an atom or molecule

The energy needed to break chemical bonds

Energy needed to start a chemical reaction

Energy released during a chemical reaction

Answer

Correct Answer: Energy contained in the internal structure of an atom or molecule

Note: This Question is unanswered, help us to find answer for this one

99. What is a chemical change?

A process by which one or more substances are altered to form new substances.

A process by which one or more substances are not altered to form new substances.

A process by which one or more substances are formed.

A process by which one substance is altered to form new substances.

Answer

Correct Answer: A process by which one or more substances are altered to form new substances.

Note: This Question is unanswered, help us to find answer for this one

100. What is the definition of a chemical?

Any matter or substance that has mass.

Something that can be felt.

Something that is alive.

Any living thing.

Answer

Correct Answer: Any matter or substance that has mass.

Note: This Question is unanswered, help us to find answer for this one

101. What is chelate?

A liquid form of oxygen

Aristocratic title in ancient Greece

Organic compound formed by bonding a polydentate ligand to a central metal atom

White, waxy substance secreted by bees

Answer

Correct Answer: Organic compound formed by bonding a polydentate ligand to a central metal atom

Note: This Question is unanswered, help us to find answer for this one

Molecular Engineering MCQs | Topic-wise

MCQ on Basic Molecular Engineering	MCQ on Comprehensive General Chemistry
MCQ on Fundamentals of Cell and Molecular Biology	MCQ on Introduction to Biochemistry
MCQ on Introductory General Chemistry	MCQ on Mathematical Methods in the Physical Sciences
MCQ on Molecular Biology of the Cell	General Molecular Engineering MCQs

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Comprehensive General Chemistry MCQs

Fundamentals of Cell and Molecular Biology MCQs

Introduction to Biochemistry MCQs

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Molecular Biology of the Cell MCQs

Basic Molecular Engineering MCQs

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