JEE Main Previous Year Papers Questions of Chemistry With Solutions are available at eSaral
Simulator
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) $\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{Cl}$
[AIEEE-2009]
Ans. (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
[AIEEE-2010]
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
[AIEEE-2010]
Ans. (2)
Q. The major product of the following reaction is :
[JEE-MAIN2018]
[JEE-MAIN2018]
Ans. (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.
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 :
[JEE-MAIN2018]
[JEE-MAIN2018]
Ans. (3)
It is nucleophilic substitution reaction.
It is nucleophilic substitution reaction.