For the synthesis of benzoic acid, the only correct combination is:

(I) (iv) (Q)

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(III) (iv) (R)

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(IV) (ii) (P)

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(II) (i) (S)

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Solution

The correct option is D (II) (i) (S)
For the synthesis of benzoic acid, the only CORRECT combination is (II) Acetophenone (i) $N a O H / {B r}_{2}$ (S) Haloform
In haloform reaction, methyl ketones are oxidised to the sodium salt of carboxylic acid. The by-product is haloform.
$P h - C O C H_{3} + 3 N a O B r N a O H / {B r}_{2} - ------ \to Δ P h - C O O N a + C H B r_{3} + 2 N a O H$

Hence, the correct option is $D$

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Similar questions

\begin{matrix} Column 1 & Column 2 & Column 3 (I) Toluene & (i) N a O H / B r_{2} & (P) Condensation (II) Acetophenone & (i i) B r_{2} / h v & (Q) Carboxylation (III) Benzaldehyde & (i i i) (C H_{3} C O)_{2} O / C H_{3} C O O K & (R) Substitution (IV) Phenol & (i v) N a O H / C O_{2} & (S) Haloform \end{matrix}

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(I V) (E t_{4} N)_{2} [C o C l_{4}]

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The only correct combination for $S_{N} 2$ reaction.

4 -

3, 4 -

4

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