Consider the following sequence of reactions.

\(\mathrm{C}_6 \mathrm{H}_6+\mathrm{CH}_3 \mathrm{CH}=\mathrm{CH}_2 \xrightarrow[\text { heat }]{\mathrm{H}_3 \mathrm{PO}_4} \mathrm{~A} \xrightarrow[2.~ \mathrm{H}_3 \mathrm{O}^{+}, \text {Heat }]{1. ~\mathrm{O}_2 \text { Heat }} \mathrm{B}+\mathrm{C}\)${\mathrm{}}_{}$

The products (B) and (C) are respectively:

1. Benzaldehyde, and acetaldehyde

2. Benzoic acid, and acetic acid

3. Phenol, and propionaldehyde

4. Phenol, and acetone

1. ${\mathrm{Cl}}^{\oplus }$

2. Cl^-

3. Cl

4. Cl²⁺

Which one of the following compounds undergoes bromination of its aromatic ring (electrophilic aromatic substitution) at the fastest rate?

1.		2.
3.		4.

Which of the following is aromatic?

1. 

2.  (Carbene)

3. 

4.  (Carbene)                    

The compound X in the above reaction is:

1.		2.
3.		4.

In the following reaction, What will be the major product?

1. 

2.  

3. 

4. 

Which one of the following is most reactive towards electrophilic reagents?

1.		2.
3.		4.

Liquid hydrocarbons can be converted to a mixture of gaseous hydrocarbons by:-

1. Oxidation

2. Cracking

3. Distillation under reduced pressure

4. Hydrolysis

What is the role of AlCl₃ in a Friedel-Crafts reaction?

1. Absorbs HCl
2. Releases HCl
3. Generates an electrophile
4. Generates a nucleophile

Which of the following compounds gives the maximum percentage of meta-substituted
product upon nitration with concentrated HNO₃/H₂SO₄?

1. Toluene

2. Aniline

3. Benzene

4. Isopropylbenzene