In the given reaction,the products are:

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Question

(A) The reactant is a secondary alkyl halide ($2$-bromotetralin). The reagent used is $CH_3-C \equiv CNa$,which is a strong nucleophile and a strong b

Vedclass · Accepted Answer

$20$% substitution product and $80$% elimination product

Vedclass · Answer

(A) The reactant is a secondary alkyl halide ($2$-bromotetralin). The reagent used is $CH_3-C \equiv CNa$,which is a strong nucleophile and a strong base. In the presence of a strong base and a secondary alkyl halide,the elimination reaction $(E2)$ is highly favored over the substitution reaction $(S_N2)$ due to steric hindrance. Therefore,the major product formed is the elimination product (alkene),while the substitution product is formed in a minor amount. Experimental results for this specific reaction show that the elimination product is the major product ($80\%$ or more),and the substitution product is the minor product ($20\%$ or less). Thus,the correct representation is $20\%$ substitution product and $80\%$ elimination product.

$A$. $ROH + SOCl_2 \rightarrow$	$P$. Darzen process
$B$. $RX (Cl, Br) + NaI \rightarrow$	$Q$. Finkelstein reaction
$C$. $RX (Cl, Br) + AgF \rightarrow$	$R$. Swarts reaction
$D$. $ArX + RX + Na \rightarrow$	$S$. Wurtz-Fittig reaction

List-$I$	List-$II$
$(A)$ Benzene	$1$. Phosgene
$(B)$ Ethylene	$2$. Silver mirror
$(C)$ Acetaldehyde	$3$. Mustard gas
$(D)$ Chloroform	$4$. $(4n + 2) \pi$ electrons
	$5$. Carbylamine

List-$I$ (Reaction)	List-$II$ (Major product)
$A. \ CH_3CH=CH_2 \xrightarrow{HI}$	$I. \ 1\text{-bromo-}2\text{-phenylethane}$
$B. \ C_6H_5CH_2CH_3 \xrightarrow{Br_2/\Delta}$	$II. \ 1\text{-iodopropane}$
$C. \ C_6H_5CH=CH_2 \xrightarrow{HBr}$	$III. \ 2\text{-iodopropane}$
	$IV. \ 1\text{-bromo-}1\text{-phenylethane}$

Similar Questions

Which of the following cannot undergo nucleophilic substitution under ordinary conditions?

Choose the correct option:

$A$. $ROH + SOCl_2 \rightarrow$ $P$. Darzen process

$B$. $RX (Cl, Br) + NaI \rightarrow$ $Q$. Finkelstein reaction

$C$. $RX (Cl, Br) + AgF \rightarrow$ $R$. Swarts reaction

$D$. $ArX + RX + Na \rightarrow$ $S$. Wurtz-Fittig reaction

Match the following lists:
List-$I$ List-$II$
$(A)$ Benzene $1$. Phosgene
$(B)$ Ethylene $2$. Silver mirror
$(C)$ Acetaldehyde $3$. Mustard gas
$(D)$ Chloroform $4$. $(4n + 2) \pi$ electrons
$5$. Carbylamine

Which of the following statements is wrong?

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