Chemistry MCQs

Question 1

The aprotic solvent is

Accepted Answer

C6H6

Answer

H2O

Answer

HF

Answer

NH3

Question 2

Which of the following has the highest lattice energy?

Accepted Answer

NaF

Answer

KF

Answer

CsF

Answer

RbF

Question 3

Which of the following substance is highly plastic ?

Accepted Answer

Clay

Answer

Quartz

Answer

Mica

Answer

Granite

Question 4

Soldering of two metals is possible because of the property of :

Accepted Answer

Cohesion

Answer

Viscosity

Answer

Osmosis

Answer

Surface tension

Question 5

"Paramagnetism" is the property of

Accepted Answer

Unpaired electrons

Answer

Paired electrons

Answer

Completely filled electronics subshells

Answer

Completely vacant electronic subshells

Question 6

The structure of NaCl crystal is

Accepted Answer

Face centered cubic

Answer

Body centered cubic

Answer

Octahedral

Answer

Square planar

Question 7

What is the mass percentage of carbon in carbon dioxide (CO 2 )?

Accepted Answer

27.3 %

Answer

15.8 %

Answer

20.1 %

Answer

32.3 %

Question 8

Methanoic and ethanoic acids can be distinguished by the action of

Accepted Answer

Tollen's reagent

Answer

NaHCO 3

Answer

NaOH

Answer

SOCl 2

Question 9

What are the components responsible for acid rain?

Accepted Answer

Sulphur dioxide (SO 2 ) and Nitrogen oxides (NO x )

Answer

Nitrogen monoxide (NO) and Carbon monoxide (CO)

Answer

Carbon dioxide (CO 2 ) and Carbon monoxide (CO)

Answer

Oxides of carbon (CO x ) and Oxides of nitrogen (NO x )