Topic Question Set
Q 11
:
Consider the above chemical reaction product ''A'' is: [2024]
(1)
Because of crowding in the molecule, product is the major product.
Q 12
:
Which among the following compounds will undergo fastest reaction? [2024]
(2)
Least crowded alkyl halide undergoes fastest, as nucleophile can approach the less crowded position with more ease. So order of reactivity of different alkyl halides for reaction is:
Q 13
:
Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A): reaction of occurs more readily than the reaction of .
Reason (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: [2024]
Both (A) and (R) are correct but (R) is not the correct explanation of (A).
(A) is correct but (R) is not correct.
(A) is not correct but (R) is correct.
Both (A) and (R) are correct and (R) is the correct explanation of (A).
(4)
Q 14
:
In the following sequence of reaction, the major products B and C respectively are: [2024]
(3)
Q 15
:
In the above reaction product 'P' is [2024]
(3)
Aromatic ring present at position acts as neighbouring group.
Q 16
:
The total number of hydrogen atoms in product A and product B is _____. [2024]
(10)
Hydrogen atoms in A = 4, hydrogen atoms in B = 6, Sum = 10
Q 17
:
Given below are two statements: [2025]
In the light of the above statements, choose the most appropriate answer from the options given below:
Statement I is incorrect but Statement II is correct
Both Statement I and Statement II are correct
Both Statement I and Statement II are incorrect
Statement I is correct but Statement II is incorrect
(2)
Statement I: Primary halides are almost unreactive towards reactions because primary carbocations are unstable. But carbocation of given halide is stabilized by +M effect of O, hence the given halide undergoes reaction.
Statement II: Primary halides with three alkyl groups at -position do not show reaction.
Q 18
:
Given below are two statements: [2025]
In the light of the above statements, choose the correct answer from the options given below.
Statement I is true but Statement II is false
Statement I is false but Statement II is true
Both Statement I and Statement II are true
Both Statement I and Statement II are false
(3)
(I) More polar medium takes the system towards high charge density, hence this system will be reluctant to go to transition state in more polar medium. This reaction is thus more favourable in less polar medium.
Q 19
:
The structure of the major product formed in the following reaction is: [2025]
(2)
Aryl halides are resistant to nucleophilic substitution reactions, so nucleophilic substitution occurs at aliphatic positions under normal conditions.
Q 20
:
The ascending order of relative rate of solvolysis of following compounds is: [2025]
(D) < (B) < (A) < (C)
(D) < (A) < (B) < (C)
(C) < (D) < (B) < (A)
(C) < (B) < (A) < (D)
(2)
