Oxidation and Reduction – JEE Advanced Previous Year Questions with Solutions

JEE Advanced Previous Year Questions of Chemistry with Solutions are available at eSaral. Practicing JEE Advanced Previous Year Papers Questions of Chemistry will help the JEE aspirants in realizing the question pattern as well as help in analyzing weak & strong areas.

 

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Previous Years JEE Advance Questions

Q. Consider all possible isomeric ketones including stereoisomers of MW = 100, All these isomers are independently reacted with $\mathrm{NaBH}_{4}$ (NOTE : stereoisomers are also reacted separately).

The total number of ketones that give a racemic product(s) is/are.

[JEE 2014]

Sol. (5)

M. wt 100 of ketone

So m. formula = $\mathrm{C}_{6} \mathrm{H}_{12} \mathrm{O}$

\ (1 ; 2 ; 3 ; 6 ; 7)


Q. In the reaction,

(A)Ethylene

(B) Acetyl chloride

(C) Acetaldehyde

(D) Acetylene

[JEE 2014]

Sol. (A)


Q. The reagent needed for converting
is :

(A) $\mathrm{H}_{2} /$ Lindlar Cat.

(B) Cat. Hydrogenation

(D) $\mathrm{Li} / \mathrm{NH}_{3}$

[JEE 2014]

Sol. (D)


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