Chemistry MCQs

Question 1

In organic compounds, nitrogen is estimated by

Accepted Answer

Dumas method

Answer

Carius method

Answer

Victor-Meyer's method

Answer

Liebig's method

Question 2

Heavy metals got their name because compared to other atoms they have

Accepted Answer

Higher atomic masses

Answer

Higher densities

Answer

Higher atomic numbers

Answer

Higher atomic radii

Question 3

Which one of the following elements exhibits the greatest tendency to lose electrons ?

Accepted Answer

Lithium

Answer

Fluorine

Answer

Oxygen

Answer

Zinc

Question 4

Which one is heaviest naturally occurring element of the periodic element?

Accepted Answer

Uranium

Answer

Iron

Answer

Thorium

Answer

Rhodium

Question 5

What is the atomic number of mercury?

Accepted Answer

80

Answer

32

Answer

41

Answer

63

Question 6

Which of the following molecules has a bond order of 2.5?

Accepted Answer

NO

Answer

HCL

Answer

CO

Answer

F2

Question 7

An element of atomic no. 29 belongs to

Accepted Answer

D-block

Answer

S-block

Answer

P-block

Answer

F-block

Question 8

Which metal is the heaviest in periodic table among the following ?

Accepted Answer

Os

Answer

Pt

Answer

Pb

Answer

W

Question 9

Ruby and sapphire are oxides of

Accepted Answer

Aluminium

Answer

Copper

Answer

Tin

Answer

Iron