Chemistry MCQs

Question 1

Which one of the following has a maximum tendency to form M3 ion ?

Accepted Answer

N

Answer

Bi

Answer

P

Answer

As

Question 2

A matured mammalian cell without nucleus is

Accepted Answer

Erythrocyte

Answer

Lymphocyte

Answer

Spermatozoan

Answer

Oocyte

Question 3

Which of the following metals can displace copper from copper sulphate solution ?

Accepted Answer

Iron

Answer

Platinum

Answer

Mercury

Answer

Gold

Question 4

Colour imparted to the Bunsen flame by strontium salt is

Accepted Answer

Crimson red

Answer

Bluish green

Answer

Apple-green

Answer

Brick red

Question 5

An oxidising agent is a

Accepted Answer

An electron acceptor

Answer

An electron donor

Answer

In a chemical reaction its oxidation number increases

Answer

It releases H2 in a chemical reaction

Question 6

Silver gets corroded due to ________ in air.

Accepted Answer

Hydrogen Sulphide

Answer

Oxygen

Answer

Carbon dioxide

Answer

Nitrogen

Question 7

Which of the following causes the rusting of iron? a. Oxidation b. Reduction c. Chemical reaction with oxygend. Chemical reaction with CO2

Accepted Answer

A and C

Answer

A and B

Answer

B and C

Answer

C and D

Question 8

Photo-oxidation process is initiated by

Accepted Answer

Light

Answer

Heat

Answer

Oxygen

Answer

Catalyst

Question 9

Copper substances when exposed to air gains a green coating due to the formation of:

Accepted Answer

CuCO3 Cu(OH)2

Answer

CuO

Answer

CuSO4

Answer

Cu(NO3)2