Halogen Derivative – JEE Main Previous Year Questions with Solutions

JEE Main Previous Year Papers Questions of Chemistry With Solutions are available at eSaral



Previous Years AIEEE/JEE Mains Questions

Q. Which of the following on heating with aqueous KOH, produces acetaldehyde ?

(1) $\mathrm{CH}_{2} \mathrm{ClCH}_{2} \mathrm{Cl}$

(2) $\mathrm{CH}_{3} \mathrm{CHCl}_{2}$

(3) $\mathrm{CH}_{3} \mathrm{COCl}$

(4) $\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{Cl}$


Sol. (1)

Q. Consider the following bromides :-

The correct order of $\mathrm{S}_{\mathrm{N}}^{1}$ reactivity is

(1) A > B > C

(2) B > C > A

(3) B > A > C

(4) C > B > A


Sol. (2)

Q. The major product of the following reaction is :


Sol. (1)

Reaction is dehydrohalogenation

$\mathrm{E}^{2}$-elimination reaction. Elimination takes place in single step and proceed by formation of transition state from anti position.

Q. The major product formed in the following reaction is :


Sol. (3)

It is nucleophilic substitution reaction.


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