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JEE Main 202229 JuneEvening Shift
Exam
JEE Main
Year
2022
Date
29 June
Shift
Evening Shift
Subject
Chemistry
Chapter
Carboxylic Acid Derivatives

JEE Main 2022 · 29 June · Evening Shift · Chemistry · Carboxylic Acid Derivatives

Two isomers (A) and (B) with Molar mass 184g / mol and elemental...

Two isomers (A)\left(A\right) and (B)\left(B\right) with Molar mass 184g/mol184g / mol and elemental compositio C,52.2C, 52 . 2 % ; H, 49 % and Br42 . 9 % gave benzoic acid and p−p - bromobenzoic acid, respectively on oxidation with KMnO4{KMnO}_{4}. Isomer ′A′' A ' is optically active and gives a pale yellow precipitate when warmed with alcoholic AgNO3{AgNO}_{3}. Isomer ′A′and′B′' A ' and ' B ' are, respectively :Two isomers (A) and (B) with Molar mass 184g / mol and elemental compositio C, 52 . 2 % ; H, 49 % and Br42 . 9 % gaveTwo isomers (A) and (B) with Molar mass 184g / mol and elemental compositio C, 52 . 2 % ; H, 49 % and Br42 . 9 % gaveTwo isomers (A) and (B) with Molar mass 184g / mol and elemental compositio C, 52 . 2 % ; H, 49 % and Br42 . 9 % gaveTwo isomers (A) and (B) with Molar mass 184g / mol and elemental compositio C, 52 . 2 % ; H, 49 % and Br42 . 9 % gaveTwo isomers (A) and (B) with Molar mass 184g / mol and elemental compositio C, 52 . 2 % ; H, 49 % and Br42 . 9 % gaveTwo isomers (A) and (B) with Molar mass 184g / mol and elemental compositio C, 52 . 2 % ; H, 49 % and Br42 . 9 % gave

Options

  1. A

    A biconvex lens is formed by using two thin planoconvex lenses, as shown in the figure. The refractive index and radius

  2. B

    A biconvex lens is formed by using two thin planoconvex lenses, as shown in the figure. The refractive index and radius

  3. C

    H3C−CHBr−C6H5{H}_{3}C - CHBr - {C}_{6}{H}_{5} and A biconvex lens is formed by using two thin planoconvex lenses, as shown in the figure. The refractive index and radius

  4. D

    A biconvex lens is formed by using two thin planoconvex lenses, as shown in the figure. The refractive index and radius and H3C−CHBr−C6H5{H}_{3}C - CHBr - {C}_{6}{H}_{5}

Correct answer

C.

H3C−CHBr−C6H5{H}_{3}C - CHBr - {C}_{6}{H}_{5} and A biconvex lens is formed by using two thin planoconvex lenses, as shown in the figure. The refractive index and radius

Step-by-step solution

Based on the percentage composition of the elements given the molecular formula of the compound is C8H9Br{C}_{8}{H}_{9}Br

Two isomers (A) and (B) with Molar mass 184g / mol and elemental compositio C, 52 . 2 % ; H, 49 % and Br42 . 9 % gave

And the degree of unsaturation or double bond equivalent of C8H9Br{C}_{8}{H}_{9}Br is 4.

It is mentioned that A is optically active and gives pale yellow precipitate with AgNO3{AgNO}_{3}.

Hence, the structures of A and B can be deduced based on the following reactions.

Two isomers (A) and (B) with Molar mass 184g / mol and elemental compositio C, 52 . 2 % ; H, 49 % and Br42 . 9 % gave

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