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The order of reactivity of the following...

The order of reactivity of the following compounds towards ammonia is
`underset((I))(CH_(3)-I)" "underset((II))(CH_(3)-Br)" "underset((III))(CH_(3)-Cl)`

A

`I gt II gt III`

B

`I lt II lt III`

C

`I lt II gt III`

D

`I lt III gt II`.

Text Solution

Verified by Experts

The correct Answer is:
A
Reaction of an alkyl halide with `NH_(3)` is an example of nucleophilic substitution. As the bond strength order is `C-I lt C-Br lt C-Cl`. `R-I` reacts at fastest at faster rate with `NH_(3)` and `R-Cl` at a slower rate.
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