EASY
JEE Main
IMPORTANT
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The density of chlorine relative to the air is

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Important Questions on Elementary Problems Based on Definition of Mole: The Mole Concept

EASY
JEE Main
IMPORTANT
A gaseous oxide contains 30.4% of nitrogen, one molecule of which contains one nitrogen atom. The density of the oxide relative to oxygen is
MEDIUM
JEE Main
IMPORTANT
The mass of an oxygen atom is half that of a sulphur atom. Can we decide on the basis that the density of sulphur vapour relative to oxygen is 2?
MEDIUM
JEE Main
IMPORTANT
The density of air is 0.001293 g cc-1 at STP. Its vapour density is
MEDIUM
JEE Main
IMPORTANT
22.4 litres of water vapour at NTP, when condensed to water, occupies an approximate volume of: