MEDIUM
9th CBSE
IMPORTANT
Earn 100

Which of the following correctly represents 360 g of water?
moles of
moles of water
molecules of water
molecules of water
(a)
(b) and
(c)(ii) and (iii)
(d) and

50% studentsanswered this correctly

Important Questions on Atoms and Molecules
MEDIUM
9th CBSE
IMPORTANT
If g of sulphur has x atoms, then the number of atoms in g of oxygen will be:

MEDIUM
9th CBSE
IMPORTANT
A student wants to have atoms each of magnesium and carbon elements. For this purpose, he will have to weigh:

HARD
9th CBSE
IMPORTANT
The ratio of moles of atoms in g of magnesium and g of sulphur will be:

MEDIUM
9th CBSE
IMPORTANT
If gram of carbon has atoms, then the number of atoms in grams of magnesium will be _____.

HARD
9th CBSE
IMPORTANT
Which of the following has the maximum number of atoms?

HARD
9th CBSE
IMPORTANT
If 1 gram of sulphur dioxide contains x molecules, how many molecules will be present in gram of oxygen?

MEDIUM
9th CBSE
IMPORTANT
The mass of one molecule of a substance is . What is its molecular mass? What could this substance be?

HARD
9th CBSE
IMPORTANT
Which contains more molecules, of sulphur dioxide or of oxygen ? (Atomic masses: ; )
