Match the reaction in Column-$I$ with the mechanism in Column-$II$.
Column-$I$ (Reaction) Column-$II$ (Mechanism) $A$. $CH_3OCH_2CH_3 + HI \to CH_3I + CH_3CH_2OH$ $i$. $S_{E}2$ Aromatic $B$. $(CH_3)_3COCH_3 + HI \to CH_3OH + (CH_3)_3CI$ $ii$. $S_{N}1$ $C$. $C_6H_5OCH_3 + Br_2(CH_3COOH) \to p$-Bromoanisole $iii$. Elimination $(\beta)$ $D$. $CH_3CH_2OH + H_2SO_4 (443 \ K) \to CH_2=CH_2$ $iv$. $S_{N}2$
| Column-$I$ (Reaction) | Column-$II$ (Mechanism) |
| $A$. $CH_3OCH_2CH_3 + HI \to CH_3I + CH_3CH_2OH$ | $i$. $S_{E}2$ Aromatic |
| $B$. $(CH_3)_3COCH_3 + HI \to CH_3OH + (CH_3)_3CI$ | $ii$. $S_{N}1$ |
| $C$. $C_6H_5OCH_3 + Br_2(CH_3COOH) \to p$-Bromoanisole | $iii$. Elimination $(\beta)$ |
| $D$. $CH_3CH_2OH + H_2SO_4 (443 \ K) \to CH_2=CH_2$ | $iv$. $S_{N}2$ |
(A-IV, B-II, C-I, D-III) The correct matches are as follows:
$A \to iv$: The reaction of primary alkyl ethers with $HI$ proceeds via an $S_{N}2$ mechanism.
$B \to ii$: The reaction of ethers containing a tertiary alkyl group with $HI$ proceeds via an $S_{N}1$ mechanism because a stable carbocation is formed.
$C \to i$: The bromination of anisole is an electrophilic aromatic substitution ($S_{E}2$ Aromatic) reaction.
$D \to iii$: The dehydration of ethanol to ethene in the presence of concentrated $H_2SO_4$ at $443 \ K$ is a $\beta$-elimination reaction.
Therefore,the correct sequence is: $A-iv, B-ii, C-i, D-iii$.
$A \to iv$: The reaction of primary alkyl ethers with $HI$ proceeds via an $S_{N}2$ mechanism.
$B \to ii$: The reaction of ethers containing a tertiary alkyl group with $HI$ proceeds via an $S_{N}1$ mechanism because a stable carbocation is formed.
$C \to i$: The bromination of anisole is an electrophilic aromatic substitution ($S_{E}2$ Aromatic) reaction.
$D \to iii$: The dehydration of ethanol to ethene in the presence of concentrated $H_2SO_4$ at $443 \ K$ is a $\beta$-elimination reaction.
Therefore,the correct sequence is: $A-iv, B-ii, C-i, D-iii$.
Explore More
Similar Questions
Write the chemical reactions for the following conversions:
$1.$ Phenol to Anisole and Phenetole
$2.$ Chlorobenzene to $p$-Bromoanisole
$1.$ Phenol to Anisole and Phenetole
$2.$ Chlorobenzene to $p$-Bromoanisole
Medium
View SolutionMatch List-$I$ with List-$II$.
List-$I$ List-$II$ $A$. Phenol $\rightarrow$ Salicylaldehyde $I$. $Br_2$ in $CS_2$ $B$. Phenol $\rightarrow$ Benzene $II$. $Na_2Cr_2O_7/H_2SO_4$ $C$. Phenol $\rightarrow$ $p$-Benzoquinone $III$. $Zn$ $D$. Phenol $\rightarrow$ $p$-Bromophenol $IV$. $CHCl_3/NaOH$
Choose the correct answer from the options given below:
| List-$I$ | List-$II$ |
|---|---|
| $A$. Phenol $\rightarrow$ Salicylaldehyde | $I$. $Br_2$ in $CS_2$ |
| $B$. Phenol $\rightarrow$ Benzene | $II$. $Na_2Cr_2O_7/H_2SO_4$ |
| $C$. Phenol $\rightarrow$ $p$-Benzoquinone | $III$. $Zn$ |
| $D$. Phenol $\rightarrow$ $p$-Bromophenol | $IV$. $CHCl_3/NaOH$ |
Choose the correct answer from the options given below:
DifficultJEE MAIN 2022
View SolutionIdentify $B$ and $D$ in the following sequence of reactions.
Match the following:
Column-$I$: Compound / Reagent Column-$II$: Other name / Chemical / Process $A$. Methanol $I$. Lucas reagent $B$. $ZnCl_2$ / Conc. $HCl$ $II$. Baeyer's reagent $C$. Rectified spirit $III$. Wood spirit $D$. Dil. $KMnO_4$ $IV$. $95 \% C_2H_5OH$ - $V$. $75 \% C_2H_5OH$ - $VI$. $90 \% C_3H_7OH$
The correct match is:
| Column-$I$: Compound / Reagent | Column-$II$: Other name / Chemical / Process |
|---|---|
| $A$. Methanol | $I$. Lucas reagent |
| $B$. $ZnCl_2$ / Conc. $HCl$ | $II$. Baeyer's reagent |
| $C$. Rectified spirit | $III$. Wood spirit |
| $D$. Dil. $KMnO_4$ | $IV$. $95 \% C_2H_5OH$ |
| - | $V$. $75 \% C_2H_5OH$ |
| - | $VI$. $90 \% C_3H_7OH$ |
The correct match is:
DifficultTS EAMCET 2021
View SolutionThe increasing order of boiling points of the following is:
Molecule Label $CH_3-O-CH_3$ $I$ $CH_3CHO$ $II$ $CH_3CH_2CH_3$ $III$ $CH_3CH_2OH$ $IV$
| Molecule | Label |
|---|---|
| $CH_3-O-CH_3$ | $I$ |
| $CH_3CHO$ | $II$ |
| $CH_3CH_2CH_3$ | $III$ |
| $CH_3CH_2OH$ | $IV$ |
Vedclass Products
For Students
Vedclass Test Series
Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.
Start Free TrialFor Teachers
Exam Paper Generator
Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.
Try FreeFor Institutes
Online Exam Module
Live online exams with unlimited students, 360° analytics & white-label branding.
See Demo