Question

, Rate of reaction toward Beckmann rearrangement
when`y= underset((i))CH_(3)CO_(2)^(-),underset((ii))Cl-CH_(2)-Co_(2)^(-),underset((iii))Ph-SO_(3)^(-)`
A. (i) gt (ii) gt (iii)
B. (ii) gt (i) gt (iii)
C. (iii) gt (ii) gt (i)
D. (iii) gt (i) gt (ii)

Answer 1

Correct Answer - C
(c ) Since RDS involve removal of leaving group, rate of reactions compound by leaving group tendency.
`" "Ph-SO_(3)^(Θ)gtCl-CH_(2)-CO_(2)^(Θ)gtCH_(3)-CO_(2)^(Θ)`
(weak base good leaving group)