MCQ
Correct order of $SN^1$ reaction is:
- A$iii > i > ii$
- B$iii > ii > i$
- C$i > iii > ii$
- ✓$i > ii > iii$
✓
Answer
Correct option: D.
$i > ii > iii$
d
The $S _{ N } 1$ reaction is a single step reaction and given by less bulky groups.
The $S _{ N } 1$ reaction is a single step reaction and given by less bulky groups.
The ease of carbocation towards $S_{N} 1$ reaction is shown below. $3^{\circ}<2^{\circ}<1^{\circ}$.
So, the correct order is $i > ii >$ $iii$
Therefore, option $(D)$ is the correct.
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