jee-main 2025 Q47

jee-main · India · session2_08apr_shift1 Not Maths
Q47. Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): $\mathrm { S } _ { \mathrm { N } } 2$ reaction of $\mathrm { C } _ { 6 } \mathrm { H } _ { 5 } \mathrm { CH } _ { 2 } \mathrm { Br }$ occurs more readily than the $\mathrm { S } _ { \mathrm { N } } 2$ reaction of $\mathrm { CH } _ { 3 } \mathrm { CH } _ { 2 } \mathrm { Br }$. Reason $( \mathrm { R } )$ : The partially bonded unhybridized p-orbital that develops in the trigonal bipyramidal transition state is stabilized by conjugation with the phenyl ring. In the light of the above statements, choose the most appropriate answer from the options given below :
(1) (A) is correct but (R) is not correct
(2) (A) is not correct but (R) is correct
(3) Both (A) and (R) are correct but (R) is not the
(4) Both (A) and (R) are correct and (R) is the correct explanation of (A) correct explanation of (A)
Q47. Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): $\mathrm { S } _ { \mathrm { N } } 2$ reaction of $\mathrm { C } _ { 6 } \mathrm { H } _ { 5 } \mathrm { CH } _ { 2 } \mathrm { Br }$ occurs more readily than the $\mathrm { S } _ { \mathrm { N } } 2$ reaction of $\mathrm { CH } _ { 3 } \mathrm { CH } _ { 2 } \mathrm { Br }$. Reason $( \mathrm { R } )$ : The partially bonded unhybridized p-orbital that develops in the trigonal bipyramidal transition state is stabilized by conjugation with the phenyl ring. In the light of the above statements, choose the most appropriate answer from the options given below :\\
(1) (A) is correct but (R) is not correct\\
(2) (A) is not correct but (R) is correct\\
(3) Both (A) and (R) are correct but (R) is not the\\
(4) Both (A) and (R) are correct and (R) is the correct explanation of (A) correct explanation of (A)