Q 1 :

Consider the following molecules:

The correct order of rate of hydrolysis is:                  [2025]

• r > q > p > s

   

• q > p > r > s

   

• p > r > q > s

   

• p > q > r > s

   

Q 2 :

Assertion A: Hydrolysis of an alkyl chloride is a slow reaction but in the presence of $\mathrm{NaI}$, the rate of the hydrolysis increases.

Reason R: ${\mathrm{I}}^{-}$ is a good nucleophile as well as a good leaving group.

In the light of the above statements, choose the correct answer from the options given below:             [2023]

• A is false but R is true

   

• A is true but R is false

   

• Both A and R are true but R is NOT the correct explanation of A

   

• Both A and R are true and R is the correct explanation of A

   

Q 3 :

The compound which will have the lowest rate towards nucleophilic aromatic substitution on treatment with ${\mathrm{OH}}^{-}$ is                   [2023]

Q 4 :

Decreasing order towards ${\mathrm{SN}}_1$ reaction for the following compounds is:         [2023]

• d > b > c > a

   

• b > d > c > a

   

• a > c > d > b

   

• a > b > c > d

   

Q 5 :

The correct order of reactivity of following haloarenes towards nucleophilic substitution with aqueous NaOH is:

Choose the correct answer from the options given below:                  [2023]

• D > C > B > A

   

• A > B > D > C

   

• C > A > D > B

   

• D > B > A > C

   

Q 6 :

Arrange the following compounds in increasing order of rate of aromatic electrophilic substitution reaction.      [2023]

• d, b, a, c

   

• b, c, a, d

   

• c, a, b, d

   

• d, b, c, a

   

Q 7 :

Decreasing order of reactivity towards electrophilic substitution for the following compounds is:         [2023]

• a > d > e > b > c

   

• d > a > e > c > b

   

• e > d > a > b > c

   

• c > b > a > d > e

   

Q 8 :

Correct statements for the given reaction are:

(A) Compound ‘B’ is aromatic

(B) The completion of above reaction is very slow

(C) ‘A’ shows tautomerism

(D) The bond length of C–C in compound B are found to be same

Choose the correct answer from the options given below:                  [2023]

• A, C and D only

   

• A, B and C only

   

• A, B and D only

   

• B, C and D only

   

Q 9 :

The correct order of reactivity of ${\mathrm{CH}}_3\mathrm{Br}$ in methanol with the following nucleophiles is  

${\mathrm{F}}^{-},{\mathrm{I}}^{-},{\mathrm{C}}_2{\mathrm{H}}_5{\mathrm{O}}^{-}\mathrm{and}{\mathrm{C}}_6{\mathrm{H}}_5{\mathrm{O}}^{-}$                          [2026]

• ${\mathrm{I}}^{-}>{\mathrm{C}}_6{\mathrm{H}}_5{\mathrm{O}}^{-}>{\mathrm{F}}^{-}>{\mathrm{C}}_2{\mathrm{H}}_5{\mathrm{O}}^{-}$

   

• ${\mathrm{I}}^{-}>{\mathrm{F}}^{-}>{\mathrm{C}}_6{\mathrm{H}}_5{\mathrm{O}}^{-}>{\mathrm{C}}_2{\mathrm{H}}_5{\mathrm{O}}^{-}$

   

• ${\mathrm{I}}^{-}>{\mathrm{C}}_2{\mathrm{H}}_5{\mathrm{O}}^{-}>{\mathrm{C}}_6{\mathrm{H}}_5{\mathrm{O}}^{-}>{\mathrm{F}}^{-}$

   

• ${\mathrm{I}}^{-}>{\mathrm{C}}_2{\mathrm{H}}_5{\mathrm{O}}^{-}>{\mathrm{F}}^{-}>{\mathrm{C}}_6{\mathrm{H}}_5{\mathrm{O}}^{-}$

   

Q 10 :

For the following given reaction

[X] & [Y] are-

• Enantiomer of each other

   

• Diastereomer of each other

   

• Both are meso compounds

   

• Constitutional isomer of each other

   

Q 11 :

Most stable product of the above following reaction is