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At room temperature, the rms speed of the molecules of a certain diatomic gas is found to be  1930ms1. The gas possibly is

a
H2
b
F2
c
C2
d
Cl2

detailed solution

Correct option is A

vRMS=3RTM19302=3×8.314M×300 ⇒M=2×10−3kgHence, the gas is H2 .

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