Assertion: Rates of nitration of benzene and hexadeuterobenzene are different. Reason: C - H bond is stronger than C - D bond.

Question

Assertion: Rates of nitration of benzene and hexadeuterobenzene are different. Reason: C - H bond is stronger than C - D bond. (A) If both assertion and reason are true and reason is the correct explanation of assertion (B) If both assertion and reason are true but reason is not the correct explanation of assertion (C) If assertion is true but reason is false (D) If both assertion and reason are false

Tardigrade Admin · Accepted Answer

Rates of nitration of benzene and hexadeuterobenzene are same because the rate determining step is production of electrophile. Besides C-H and C-D bonds in benzene have equal strength. Thus, both assertion and reason are false.

Q. Assertion : Rates of nitration of benzene and hexadeuterobenzene are different. Reason : C−H bond is stronger than C−D bond.

If both assertion and reason are true and reason is the correct explanation of assertion

If both assertion and reason are true but reason is not the correct explanation of assertion

If assertion is true but reason is false

If both assertion and reason are false

Rates of nitration of benzene and hexadeuterobenzene are same because the rate determining step is production of electrophile. Besides C-H and C-D bonds in benzene have equal strength. Thus, both assertion and reason are false.

Q. Assertion : Rates of nitration of benzene and hexadeuterobenzene are different.
Reason : $C - H$ bond is stronger than $C - D$ bond.