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Which of the following is a unimolecular...

Which of the following is a unimolecular reaction

A

`2HI to H_(2)+I_(2)`

B

`N_(2)O_(5) to N_(2)O_(4)+(1)/(2)O_(2)`

C

`H_(2)+Cl_(2) to 2HCl`

D

`PCl_(3)+Cl_(2) to PCl_(5)`

Text Solution

Verified by Experts

The correct Answer is:
B
Because in this reaction one molecule of `N_(2)O_(5)` is used .
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