Q 11 :

Number of bromo derivatives obtained on treating ethane with excess of ${\mathrm{Br}}_2$ in diffused sunlight is _______.         [2023]

Q 12 :

Identify A in the following reaction.                         [2026]

Q 13 :

Given below are two statements:                              [2026]

Statement I: There are several conformers for n–butane. Out of those conformers,

Statement II: As the dihedral angle increases, torsional strain decreases from (X) to (Y).

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

• Both Statement I and Statement II are true

   

• Statement I is false but Statement II is true

   

• Both Statement I and Statement II are false

   

• Statement I is true but Statement II is false

   

Q 14 :

$\mathrm{Ph}-\mathrm{CH}={\mathrm{CH}}_2 \underset{\mathrm{HBr}}{\overset{{\left(\mathrm{PhCOO}\right)}_2}{\to }} \text{Product}$

Consider the above reaction.

A. The reaction proceeds through a more stable radical intermediate.
B. The role of peroxide is to generate $H^{•}$ (Hydrogen radical).
C. During this reaction, benzene is formed as a byproduct.
D. 1–Bromo–2–phenylethane is formed as the minor product.
E. The same reaction in absence of peroxide proceeds via carbocation intermediate.

Identify the correct statements. Choose the correct answer from the options given below:    [2026]

• A, B & D Only

   

• A, C & E Only

   

• C, D & E Only

   

• A & E Only