Q.

For H2 and He, compressibility factor (Z) and molar volume (Vm) at STP are

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a

Z > 1, Vm < 22.4 litre

b

Z > 1, Vm > 22.4 litre

c

Z < 1, Vm < 22.4 litre

d

Z < 1, Vm >22.4 litre

answer is C.

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Detailed Solution

The compressibility factor of H2​ and He is >1. 

Because, they show real gas behavior and occupies more volume than usual. 

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