Which of the following reactions can produce aniline as main product?

1. $\mathrm{C}_6 \mathrm{H}_5 \mathrm{NO}_2+\mathrm{Zn} / \mathrm{KOH}$
2. $\mathrm{C}_6 \mathrm{H}_5 \mathrm{NO}_2+\mathrm{Zn} / \mathrm{NH}_4 \mathrm{Cl}$
3. $\mathrm{C}_6 \mathrm{H}_5 \mathrm{NO}_2+\mathrm{LiAlH}_4$
4. $\mathrm{C}_6 \mathrm{H}_5 \mathrm{NO}_2+\mathrm{Zn} / \mathrm{HCl}$

Solution

Reduction of nitrobenzene in acidic medium forms aniline as-
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Asked in: JEE-TOPICTESTS-CHEMISTRY

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