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NEET
Exam
NEET
Subject
Chemistry
Chapter
Haloalkanes and Haloarenes

NEET · Chemistry · Haloalkanes and Haloarenes

Match the following and choose the correct code. Codes array llll A...

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

Options

  1. A3512\begin{array}{llll}3 & 5 & 1 & 2\end{array}
  2. B3412\begin{array}{llll}3 & 4 & 1 & 2\end{array}
  3. C2312\begin{array}{llll}2 & 3 & 1 & 2\end{array}
  4. D5132\begin{array}{llll}5 & 1 & 3 & 2\end{array}

Correct answer

B. 3412\begin{array}{llll}3 & 4 & 1 & 2\end{array}

Step-by-step solution

Wurtz reaction is a coupling reaction where two alkyl halides are reacted with sodium metal in dry ether to give higher alkane. 2R−Br→NaR−R+2NaBr2 R-\mathrm{Br} \xrightarrow{\mathrm{Na}} R-R+2 \mathrm{NaBr} In decarboxylation, a carboxyl group is removed and CO2\mathrm{CO}_2 is released. RCOO−Na+→CaO,ΔNaOHR−HR \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. Match the following and choose the correct code. Codes array llll A & B & C & D array
Electrophilic addition reaction occurs between electrophile and a nucleophile, adding to double or triple bond. CH2=CH2→CCl4Br2Br−CH2−CH2Br\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)(A-3),(B-4),(C-1),(D-2).
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