For the electrophilic substitution reaction i | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) In electrophilic aromatic substitution,the rate-determining step for sulphonation is the removal of the proton (or deuteron/triton) from the sigma

Vedclass · Accepted Answer

$k_{C_6H_6} > k_{C_6D_6} > k_{C_6T_6}$

Vedclass · Answer

(A) In electrophilic aromatic substitution,the rate-determining step for sulphonation is the removal of the proton (or deuteron/triton) from the sigma complex intermediate. Since the $C-H$ bond is weaker than the $C-D$ bond,and the $C-D$ bond is weaker than the $C-T$ bond due to the primary kinetic isotope effect,the reaction rate is fastest for benzene $(C_6H_6)$ and slowest for tritiated benzene $(C_6T_6)$. Therefore,the correct order is $k_{C_6H_6} > k_{C_6D_6} > k_{C_6T_6}$.

For the electrophilic substitution reaction involving sulphonation,which of the following sequences regarding the rate of reaction is true?

Similar Questions

Nitrating mixture is

What is meant by activating groups? Explain with suitable examples.

Which represents an intermediate formed in the reaction of toluene and chlorine at elevated temperature in sunlight?

Benzene can react with..........

Identify the product $A$ in the following reaction:
$C_6H_6 + CH_2Cl_2 \xrightarrow{\text{Anhy. } AlCl_3} A$

Vedclass Test Series

Exam Paper Generator

Online Exam Module