n-Butylbenzene on oxidation with hot alkaline KMnO₄ gives:

1.	Benzoic acid	2.	Butanoic acid
3.	Benzyl alcohol	4.	Benzaldehyde

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

1.		2.
3.		4.

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

Consider the following sequence of reactions.

$\underset{{\mathrm{NaHSO}}_3}{\overset{{\mathrm{OsO}}_4}{\to }}$A$\underset{2. \mathrm{NaOH}, \mathrm{heat}}{\overset{1. {\mathrm{HIO}}_4}{\to }}$B. The final product (B) is:

1. 

2. 

3. 

4. 

1. ${\mathrm{Cl}}^{\oplus }$

2. Cl^-

3. Cl

4. Cl²⁺

The major product expected from the  mono-bromination of phenyl  benzoate is:

(a) 

(b) 

(c) 

(d) 

(A) C₈H₁₀ $\stackrel{{\mathrm{KMnO}}_4}{\to }$ (B)  C₈H₆O₄$\underset{\mathrm{Fe}}{\overset{{\mathrm{Br}}_2}{\to }}$  C₈H₅BrO₄  (C)  (one-product only)

The structure of A in the above-mentioned reaction is-

1.		2.
3.		4.

$\mathrm{Ph}-{\mathrm{CO}}_2\mathrm{H}\stackrel{{\mathrm{SOCl}}_2}{\to }\mathrm{A}\stackrel{{\mathrm{Me}}_2\mathrm{NH}}{\to }\mathrm{B}\stackrel{\left(\mathrm{c}\right)}{\to }\mathrm{Ph}-\mathrm{CHO}$, unknown reagent (c) is:

1. LiALH₄

2. NaBH₄

3. LiAlH₄(t-BuO)₃

4. PCC/CH₂CL₂

The product (B) in the above-mentioned reaction is:

1.		2.
3.		4.

$\stackrel{{\mathrm{Cl}}_2}{\to }$ (A), Product (A) of this reaction is:

(a) 

(b) 

(c) 

(d)