Organic Chemistry MCQ
All chemical activities can be viewed as a series of ____________ between molecules.
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Correct Answer:
Chemical reactions
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Geometric isomers are molecules that _____.
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Differ in the arrangement of their atoms about a double bond
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Chemical groups are significant because __________.
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They contribute to the molecular shape of a molecule and its unique properties
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Biologically important chemical groups include all of the following except __________.
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Water (H2O)
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The chemical group that is involved in regulating dna is the __________.
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Methyl group (-CH3)
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Stanley miller's 1953 experiments supported the hypothesis that _____.
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Organic molecules can be synthesized abiotically under conditions that may have existed on early Earth
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Organic molecules with only hydrogens and five carbon atoms cannot _____.
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Form enantiomers.
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The functional groups shown are the _______ group, the _______ group, and the _______ group.
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The most important way to classify organic compounds is by _____.
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Functional group
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The complexity and variety of organic molecules is due to _____.
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The chemical versatility of carbon atoms
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The carbon atom is tetravalent, which means that __________.
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A carbon atom can complete its valence shell by forming four covalent bonds
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The delocalized system in benzene is formed by a cyclic overlap of 6 ________ orbitals.
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An atom with z = 26 and a = 58 contains ________ protons and ________ neutrons.
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Typically, amides will hydrolyze under ________ conditions than esters.
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Choline is a quaternary ammonium compound with a __________ charge on the nitrogen.
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In an ethane (c2h6) molecule, each carbon atom is bonded to ________ hydrogen atoms.
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The carbon skeleton can vary in all of the following except __________.
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Lack of H atoms
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The chemical group that helps stabilize protein structure is the __________.
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Sulfhydryl group (-SH)
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A cycloalkane ________.
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Has two fewer hydrogen atoms than the corresponding alkane
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The carbon-carbon triple bond of an alkyne is composed of ________.
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One σ bond and two π bonds
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A mole of yellow photons of wavelength 527 nm has ________ kj of energy.
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The ionized or dissociated carboxyl group may be written as __________.
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1-methylcyclopentanol is classified as ________.
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A tertiary alcohol
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A gas under constant pressure will ____________ when ____________.
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Expand; heated
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Stanley miller's experiments were significant because he demonstrated that __________.
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A large variety of organic compounds could be spontaneously synthesized from components in Earth's primitive atmosphere
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Of the bonds below, ________ is the least polar.
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Enantiomers are molecules that _____.
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Are mirror images
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Enantiomers are __________.
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Mirror-image isomers of a molecule
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Dopamine,c8h11no2, has ____________ degrees of unsaturation.
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A secondary alcohol has a hydroxyl group bonded to a(n) ________.
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Carbon bonded to two alkyl groups
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A saturated hydrocarbon is an organic compound which contains hydrogen and carbon joined _____.
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With single bonds
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A carbon atom with four single bonds will be ____________hybridized.
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