EASY
9th CBSE
IMPORTANT
Earn 100

1 mole of atoms is equal to: 

88% studentsanswered this correctly

Important Questions on Atoms and Molecules

MEDIUM
9th CBSE
IMPORTANT
One mole of a substance is equal to:
MEDIUM
9th CBSE
IMPORTANT

The number of moles in 15.6 g of potassium is:     

K=39

MEDIUM
9th CBSE
IMPORTANT

The number of moles in 28.4 g of chlorine atoms (CI) is: 

Cl=35.3

MEDIUM
9th CBSE
IMPORTANT

The number of moles in 100 g argon is:

Ar=40

MEDIUM
9th CBSE
IMPORTANT

The mass of 0.25 moles of silver is: 

Ag=108

HARD
9th CBSE
IMPORTANT
A flask contains 0.004 moles of neon gas. Its mass in grams is:
Ne=20
MEDIUM
9th CBSE
IMPORTANT
The mass of zinc metal in 25 moles is:
Zn=65
HARD
9th CBSE
IMPORTANT

The number of atoms in 0.05 g of hydrogen is: 

H=1