Match the following and choose the correct code. Codes $\begin{array}{llll}A & B & C & D\end{array}$

Match the following and choose the correct code.
Codes $\begin{array}{llll}A & B & C & D\end{array}$

1. $\begin{array}{llll}3 & 5 & 1 & 2\end{array}$
2. $\begin{array}{llll}3 & 4 & 1 & 2\end{array}$
3. $\begin{array}{llll}2 & 3 & 1 & 2\end{array}$
4. $\begin{array}{llll}5 & 1 & 3 & 2\end{array}$

Solution

Wurtz reaction is a coupling reaction where two alkyl halides are reacted with sodium metal in dry ether to give higher alkane. $2 R-\mathrm{Br} \xrightarrow{\mathrm{Na}} R-R+2 \mathrm{NaBr}$ In decarboxylation, a carboxyl group is removed and $\mathrm{CO}_2$ is released. $R \mathrm{COO}^{-} \mathrm{Na}^{+} \xrightarrow[\mathrm{CaO}, \Delta]{\mathrm{NaOH}} R-\mathrm{H}$ Lindlar's catalyst has 3 components i.e. palladium-calcium carbonate, lead acetate and quinoline. Quinoline prevents complete hydrogenation of alkynes to alkane resulting in partial reduction.
Electrophilic addition reaction occurs between electrophile and a nucleophile, adding to double or triple bond. $\mathrm{CH}_2=\mathrm{CH}_2 \xrightarrow[\mathrm{CCl}_4]{\mathrm{Br}_2} \mathrm{Br}-\mathrm{CH}_2-\mathrm{CH}_2 \mathrm{Br}$ So, correct match is $(A-3),(B-4),(C-1),(D-2)$.

Asked in: AP EAMCET 2021 (24 Aug Shift 2)

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