Chemistry MCQs

Question 1

In which of the following ions , the colour is not due to d-d transition ?

Accepted Answer

[CrO4]2−

Answer

[Ti(H2O)6]3+

Answer

[CoF6]3+

Answer

[Cu(NH3)4]2+

Question 2

What is Zeolite?

Accepted Answer

Hydrated Aluminosilicate

Answer

Hydrated Calcium Sulphate

Answer

Dehydrated Aluminosilicate

Answer

Dehydrated Calcium Sulphate

Question 3

The coordination number of body centered atom in cubic structure is

Accepted Answer

8

Answer

4

Answer

6

Answer

10

Question 4

The product, 9-nitroanthracene is obtained from anthracene by the action of

Accepted Answer

Nitric acid and acetic anhydride

Answer

Nitric acid and ethyl alcohol

Answer

Nitric acid and acetic acid

Answer

Nitric acid in excess

Question 5

Cyanide poisoning causes death in seconds because

Accepted Answer

It causes cardiac arrest

Answer

It denatures enzymes of the heart/muscle

Answer

It breaks the electron transport chain

Answer

It causes Lysis of red blood cells

Question 6

Peroxyacetyl nitrate is a

Accepted Answer

Secondary pollutant

Answer

Acidic dye

Answer

Plant hormone

Answer

Vitamin

Question 7

What is used in storage batteries?

Accepted Answer

Lead

Answer

Copper

Answer

Tin

Answer

Zinc

Question 8

The degree of dissociation of an electrolyte depends on

Accepted Answer

Dilution

Answer

Impurities

Answer

Atmospheric pressure

Answer

Method of dissolution

Question 9

In the electroplating of gold, the electrolyte used is

Accepted Answer

Gold sulphate

Answer

Gold chloride

Answer

Gold nitrate

Answer

Potassium aurocyanide