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JEE MAIN 2021
25-02-2021 S2
Question
The correct sequence of reagents used in the preparation of 4-bromo-2-nitroethyl benzene from benzene is :
Select the correct option:
A
$\begin{aligned} & \mathrm{HNO}_3 / \mathrm{H}_2 \mathrm{SO}_4, \quad \mathrm{Br}_2 / \mathrm{AlCl}_3, \quad \mathrm{CH}_3 \mathrm{COCl} / \mathrm{AlCl}_3, \\ & \mathrm{Zn}-\mathrm{Hg} / \mathrm{HCl}\end{aligned}$
B
$\begin{array}{ll}\mathrm{Br}_2 / \mathrm{AlBr}_3, & \mathrm{CH}_3 \mathrm{COCl} / \mathrm{AlCl}_3, \\ \mathrm{Zn} / \mathrm{HCl} & \mathrm{HNO}_3 / \mathrm{H}_2 \mathrm{SO}_4,\end{array}$
C
$\begin{aligned} & \mathrm{CH}_3 \mathrm{COCl} / \mathrm{AlCl}_3, \quad \mathrm{Br}_2 / \mathrm{AlBr}_3, \quad \mathrm{HNO}_3 / \mathrm{H}_2 \mathrm{SO}_4, \\ & \mathrm{Zn} / \mathrm{HCl}\end{aligned}$
D
$\begin{array}{lll}\mathrm{CH}_3 \mathrm{COCl} / \mathrm{AlCl}_3, & \mathrm{Zn}-\mathrm{Hg} / \mathrm{HCl}, & \mathrm{Br}_2 / \mathrm{AlBr}_3, \\ \mathrm{HNO}_3 / \mathrm{H}_2 \mathrm{SO}_4 & \end{array}$
✓ Correct! Well done.
✗ Incorrect. Try again or view the solution.
Solution
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Question Tags
JEE Main
Chemistry
Medium
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