1.

At NTP, the density of a gas, whose molecular weight is 45 is [Pb. CET 2001, 03]

A.                 44.8 gm/litre     
B.                 11.4 gm/litre
C.                 2 gm/ litre          
D.                 3 gm/litre
Answer» D.                 3 gm/litre


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