A) rate of diffusion of \[{{H}_{2}}\] is greater than \[{{D}_{2}}\]
B) \[{{H}_{2}}\] has lower energy of activation than \[{{D}_{2}}\]
C) Both (a) and (b) are correct .
D) None of the above is correct
Correct Answer: B
Solution :
\[{{H}_{2}}\]reacts much faster with \[C{{l}_{2}}\] than \[{{D}_{2}}\], because \[{{H}_{2}}\]has lower energy of activation than \[{{D}_{2}}\].
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