MEDIUM
9th CBSE
IMPORTANT
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How many moles are present in 11.5g of sodium?

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Important Questions on Atoms and Molecules

EASY
9th CBSE
IMPORTANT
In which of the following, the valency of each of the constituent elements is equal to the total number of atoms in one molecule of the compound?
EASY
9th CBSE
IMPORTANT
The chemical symbol for nitrogen gas is
MEDIUM
9th CBSE
IMPORTANT
What will be the mass of 5 mole of SO2?
EASY
9th CBSE
IMPORTANT
In which form do atoms exist in aqueous solutions? Give example.
EASY
9th CBSE
IMPORTANT
Give the symbol of the following element.
Aluminium
EASY
9th CBSE
IMPORTANT
Give the symbol of the following element.
Cobalt
EASY
9th CBSE
IMPORTANT
Give the symbol of the following element.
Arsenic
EASY
9th CBSE
IMPORTANT
Give the symbol of the following element.
Radon