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The gas or vapour heavier than air is...

The gas or vapour heavier than air is

A

Water vapour

B

Fluorine gas

C

Ammonia vapour

D

Neon gas

Text Solution

Verified by Experts

The correct Answer is:
B
Mol. mass of water = 18, Mol. mass of `F_(2) = 38`
Mol. mass of ammonia = 17
Mol. Mass of `Ne = 20`
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