A gas diffuses one-thrid as fast as O_(2) at 100^(@)C. This gas could

1.	A gas diffuses one-thrid as fast as O_(2) at 100^(@)C. This gas could be:
Answer» <html><body><p>He(M=4)<br/>`C_(2)H_(5)(M=48)`<br/>`C_(7)H_(<a href="https://interviewquestions.tuteehub.com/tag/12-269062" style="font-weight:bold;" target="_blank" title="Click to know more about 12">12</a>)(M=96)`<br/>`C_(5)F_(12)(M=288)`</p><a href="https://interviewquestions.tuteehub.com/tag/answer-15557" style="font-weight:bold;" target="_blank" title="Click to know more about ANSWER">ANSWER</a> :d</body></html>

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