![JEE Main 2023 Chemistry, Haloalkanes and Haloarenes — question figure](https://prepforbharat.s3.ap-south-1.amazonaws.com/exam/615f0e999476412f48314daf/Chemistry/images/Haloalkanes_and_Haloarenes/648b5a6f417cc3fb48d68248/question_1__q_648b5a6f417cc3fb48d68248__cdn-question-pool.getmarks.app__c681cbfa-7836-4081-86a4-e9d5a9b35116-image__f1dacd7db0_final_ppt_sync.png) In the above conversion of compound ($X$) to product ($Y$), the sequence of reagents to be used will be:

JEE Main 2023 — Chemistry Organic Chemistry

2023mcqhard

JEE Main 2023 Chemistry, Haloalkanes and Haloarenes — question figure

In the above conversion of compound ( $X$ ) to product ( $Y$ ), the sequence of reagents to be used will be:

Official previous-year question

Held on 30 Jan 2023 · Verified 6 Jul 2026.

Options

A
(i) ${\mathrm{Br}}_{2},\mathrm{Fe}$

(ii) $\mathrm{Fe},{H}^{+}$

(iii) ${\mathrm{LiAlH}}_{4}$
B
(i) ${\mathrm{Br}}_{2}(\mathrm{aq})$

(ii) ${\mathrm{LiAlH}}_{4}$

(iii) ${H}_{3}{O}^{+}$
C
(i) $\mathrm{Fe},{H}^{+}$

(ii) ${\mathrm{Br}}_{2}(\mathrm{aq})$

(iii) ${\mathrm{HNO}}_{2}$

(iv) $\mathrm{CuBr}$
D
(i) $\mathrm{Fe},{H}^{+}$

(ii) ${\mathrm{Br}}_{2}(\mathrm{aq})$

(iii) ${\mathrm{HNO}}_{2}$

(iv) ${H}_{3}{\mathrm{PO}}_{2}$

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Solution

The nitro group on the benzene ring is reduced to amine group with metal and acid. Now, the methyl and nitro groups present on the benzene ring are ortho-para directing groups and amine group is the strong activator. Hence, bromine water reacts with respect to amino group. The amino group on the benzene ring undergoes diazotization with nitrous acid. The diazonium part reduces to benzene with hypophosphorous acid.

JEE Main 2023 Chemistry, Haloalkanes and Haloarenes — solution figure

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Options

(i) ${\mathrm{Br}}_{2},\mathrm{Fe}$

(ii) $\mathrm{Fe},{H}^{+}$

(iii) ${\mathrm{LiAlH}}_{4}$

(i) ${\mathrm{Br}}_{2}(\mathrm{aq})$

(ii) ${\mathrm{LiAlH}}_{4}$

(iii) ${H}_{3}{O}^{+}$

(i) $\mathrm{Fe},{H}^{+}$

(ii) ${\mathrm{Br}}_{2}(\mathrm{aq})$

(iii) ${\mathrm{HNO}}_{2}$

(iv) $\mathrm{CuBr}$

(i) $\mathrm{Fe},{H}^{+}$

(ii) ${\mathrm{Br}}_{2}(\mathrm{aq})$

(iii) ${\mathrm{HNO}}_{2}$

(iv) ${H}_{3}{\mathrm{PO}}_{2}$

Solution

JEE Main 2023 Chemistry, Haloalkanes and Haloarenes — solution figure

JEE Main 2023 — Chemistry Organic Chemistry

Options

Did you get this right?

Solution

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JEE Main Organic Chemistry in other years

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JEE Main 2023 — Chemistry Organic Chemistry

Options

Did you get this right?

Solution

Your note

JEE Main Organic Chemistry in other years

More JEE Main Organic Chemistry questions

Other Chemistry topics for JEE Main

Physical Chemistry

Inorganic Chemistry

Keep practicing Organic Chemistry