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Question

(D) The reactions are matched as follows:$(P)$ Etard reaction uses Toluene as a reactant,which is the product of reaction $(3)$ (Friedel-Crafts alkyla

Vedclass · Accepted Answer

$P$ $\rightarrow 3; Q$ $\rightarrow 4; R$ $\rightarrow 5; S$ $\rightarrow 2$

Vedclass · Answer

(D) The reactions are matched as follows:$(P)$ Etard reaction uses Toluene as a reactant,which is the product of reaction $(3)$ (Friedel-Crafts alkylation of benzene). However,looking at the provided image,the Etard reaction is shown as the final step of sequence $(iii)$,where Toluene is the reactant. The product of reaction $(2)$ is Benzoyl chloride,which is the reactant for Rosenmund reduction $(S)$.$(Q)$ Gattermann reaction uses Benzenediazonium chloride as a reactant,which is the product of reaction $(4)$.$(R)$ Gattermann-Koch reaction uses Benzene as a reactant,which is the product of reaction $(5)$.$(S)$ Rosenmund reduction uses Benzoyl chloride as a reactant,which is the product of reaction $(2)$.Thus,the correct matching is $P$ $\rightarrow 3, Q$ $\rightarrow 4, R$ $\rightarrow 5, S$ $\rightarrow 2$.

List-$I$	List-$II$
$(P)$ Etard reaction	$(1)$ Acetophenone $\xrightarrow{Zn-Hg, HCl}$
$(Q)$ Gattermann reaction	$(2)$ Toluene $\xrightarrow[(ii) SOCl_2]{(i) KMnO_4, KOH}$
$(R)$ Gattermann-Koch reaction	$(3)$ Benzene $\xrightarrow[\text{anhyd. } AlCl_3]{CH_3Cl}$
$(S)$ Rosenmund reduction	$(4)$ Aniline $\xrightarrow[273-278 \ K]{NaNO_2 / HCl}$
	$(5)$ Phenol $\xrightarrow[Zn, \Delta]{ }$

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