question_answer

At room temperature a diatomic gas is found to have an r.m.s. speed of 1930 \[\text{m}{{\text{s}}^{\text{-1}}}\]. The gas is: [JEE ONLINE 12-04-2014]

A)  \[{{H}_{2}}\]              

B)       \[C{{l}_{2}}\]

C)  \[{{O}_{2}}\]              

D)       \[{{F}_{2}}\]

Correct Answer: A

Solution :

[a]

The gas is