MEDIUM
9th CBSE
IMPORTANT
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Atomic mass of mercury is . Mass of its one atom is:
(a)g
(b) g
(c) g
(d) g

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Important Questions on Atoms and Molecules
MEDIUM
9th CBSE
IMPORTANT

MEDIUM
9th CBSE
IMPORTANT
Amongst g of sodium or g of calcium, the element which has more atoms is:

EASY
9th CBSE
IMPORTANT
Amongst of sulphur and phosphorus, the element which has more moles is:
[Atomic mass of ]

HARD
9th CBSE
IMPORTANT

HARD
9th CBSE
IMPORTANT
g of silicon contains atoms. The number of atoms in g of calcium is:

HARD
9th CBSE
IMPORTANT
g magnesium contains atoms. The number of atoms in g of aluminium is:

EASY
9th CBSE
IMPORTANT

EASY
9th CBSE
IMPORTANT
g carbon dioxide has:
