> > Mathematics MCQs > D-Block Elements Test MCQs

D-Block Elements Test MCQ

D-Block Elements MCQ

1. In which form zinc is present in the ore willemite?

ZnO

ZnS

ZnCo3

Zn2SiO4

Answer

Correct Answer: Zn2SiO4

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

2. What is the nature of Zn (OH) 2?

Acidic

Amphoteric

Basic

Neutral

Answer

Correct Answer: Amphoteric

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

3. What is the use of Zeigler – Natta catalyst?

In the Ostwald process for converting NH3 into NO

Polymerization of alkyne to give benzene

Oxidizing alcohols to aldehydes

Polymerization of ethane to produce polythene

Answer

Correct Answer: Polymerization of ethane to produce polythene

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

4. The process used for the extraction of gold is:

Sodium amalgam vertical retort process

Mac Arthur – Forest cyanide process

Bayer’s process

Parke’s process

Answer

Correct Answer: Mac Arthur – Forest cyanide process

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

5. Which among the following show variable oxidation states?

All

Answer

Correct Answer: All

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

6. What happens when NH4OH is added to a solution of copper sulphate?

A deep blue solution is obtained

Blue precipitate of copper hydroxide is obtained

No change is observed

Black precipitate of copper oxide is obtained

Answer

Correct Answer: A deep blue solution is obtained

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

7. What is the equivalent weight of KMnO4 when it is converted in MnSO4?

M/5

M/6

M/2

M/3

Answer

Correct Answer: M/5

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

8. Which among the following is a set of transition elements?

Pt, Cd, Sb

Sn, Bi, Mn

Hg, Pb, Cu

Zr, Au, Ni

Answer

Correct Answer: Zr, Au, Ni

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

9. Cd2+ is isoelectronic with:

Zn2+

Pb2+

Ag+

Cu2+

Answer

Correct Answer: Ag+

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

10. Which of the following statement is correct?

Zinc reacts with dil. HNO3 to produce N2

Zinc reacts with conc. HNO3 to produce of mixture of NO and NO2

Zinc reacts with dil. HNO3 to produce NO2

Zinc reacts with very dil. HNO3 to produce NH4NO3

Answer

Correct Answer: Zinc reacts with very dil. HNO3 to produce NH4NO3

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

11. Zinc and mercury differs in showing variable valency like d – block elements because:

They are soft

Their d – shells are incomplete

They have only two electrons in the outermost shell

Their d – shells are complete

Answer

Correct Answer: Their d – shells are complete

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

12. Coinage metals show the properties of:

Typical elements

Normal elements

Transitional elements

Inert elements

Answer

Correct Answer: Transitional elements

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

13. Similarity between Nb and Ta is because they:

Belong to same group of periodic table

Are transition metals

Have almost same ionic and covalent radii

Have the same mineral source

Answer

Correct Answer: Have almost same ionic and covalent radii

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

14. Due to which property Zr and Hf shows similar atomic and ionic size?

They are in the same group

Lanthanide contraction

Diagonal relationship

They have similar chemical properties

Answer

Correct Answer: Lanthanide contraction

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

15. Which among the following is a Zeigler – Natta?

Pt/Rh

Pt/PtO catalyst

TiCl4/Al(C2H5)3

Answer

Correct Answer: TiCl4/Al(C2H5)3

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

Mathematics MCQs | Topic-wise

MCQ on Algebra	MCQ on Applied Mathematics
MCQ on Computation Theory	MCQ on D-Block Elements Test
MCQ on Easy Mathematics	MCQ on Geometry
MCQ on Ionic Equilibria Test	MCQ on Number System
MCQ on Speed Time And Distance	MCQ on Statistics and Probability
General Mathematics MCQs