The only correct combination in which the reaction proceeds through radical mechanism is:

(III) (ii) (P)

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(I) (ii) (R)

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(IV) (i) (Q)

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(II) (iii) (R)

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Solution

The correct option is A (I) (ii) (R)
The only correct combination in which the reaction proceeds through radical mechanism is (I) toluene (ii) ${B r}_{2} / h v$ (R) substitution.
$B r_{2} h ν - \to 2 B r^{.}$

$C_{6} H_{5} - C H_{3} {B r}_{2} / h v - --- \to C_{6} H_{5} - C H_{2} B r {B r}_{2} / h v - --- \to C_{6} H_{5} - C H B r_{2} {B r}_{2} / h v - --- \to C_{6} H_{5} - C B r_{3}$

Hence, the correct option is $B$

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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}

Column-I: Subshell Column-II: Number of spherical nodes Column-III: Radial plot

The only correct combination for the last electron of $C l^{-}$ is:

\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}

Column-I: Subshell Column-II: Number of spherical nodes Column-III: Radial plot

The only correct combination for the last electron of $C l^{-}$ is:

S_{N} 1

(A) + S O C l_{2} ⟶

(A) + C O C l_{2} ⟶

(A) + S O C l_{2} P y r i d i n e ⟶

(A) + C O C l_{2} P y r i d i n e ⟶

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