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JEE Main 20204 SeptemberMorning Shift
Exam
JEE Main
Year
2020
Date
4 September
Shift
Morning Shift
Subject
Chemistry
Chapter
Carboxylic Acid Derivatives

JEE Main 2020 · 4 September · Morning Shift · Chemistry · Carboxylic Acid Derivatives

[P] on treatment with Br _ 2 / FeBr _ 3 in CCl _ 4 produced a...

[P]\left[P\right] on treatment with Br2/FeBr3inCCl4{Br}_{2} / {FeBr}_{3} in {CCl}_{4} produced a single isomer C8H7O2Br{C}_{8}{H}_{7}{O}_{2}Br wile heating \left[P\right]withsodalimegivestoluene.Thecompound[P]with sodalime gives toluene. The compound \left[P\right] is:[P] on treatment with Br _ 2 / FeBr _ 3 in CCl _ 4 produced a single isomer C _ 8 H _ 7 O _ 2 Br wile heating [P] with[P] on treatment with Br _ 2 / FeBr _ 3 in CCl _ 4 produced a single isomer C _ 8 H _ 7 O _ 2 Br wile heating [P] with[P] on treatment with Br _ 2 / FeBr _ 3 in CCl _ 4 produced a single isomer C _ 8 H _ 7 O _ 2 Br wile heating [P] with[P] on treatment with Br _ 2 / FeBr _ 3 in CCl _ 4 produced a single isomer C _ 8 H _ 7 O _ 2 Br wile heating [P] with[P] on treatment with Br _ 2 / FeBr _ 3 in CCl _ 4 produced a single isomer C _ 8 H _ 7 O _ 2 Br wile heating [P] with

Options

  1. AThe number of correct statements about modern adsorption theory of heterogeneous catalysis from the following is ......
  2. BThe number of correct statements about modern adsorption theory of heterogeneous catalysis from the following is ......
  3. CThe number of correct statements about modern adsorption theory of heterogeneous catalysis from the following is ......
  4. DThe number of correct statements about modern adsorption theory of heterogeneous catalysis from the following is ......

Correct answer

A. The number of correct statements about modern adsorption theory of heterogeneous catalysis from the following is ......

Step-by-step solution

Isomer C8H7O2Br{C}_{8}{H}_{7}{O}_{2}Br on heating with sodalime gives toluene,hence it is an acid.Moreover since it has Degree of unsaturation 5 therefore it is an aromatic carboxylic acid.Since Carboxylic acid on heating gives toluene ,therefore it is having −CH3- {CH}_{3} group attached to the benzene ring.

Now it forms single isomer on halogenation, therefore −CH3- {CH}_{3} group must be attached at para position with respect to −COOH- COOH group.

Hence correct option is 1.

[P] on treatment with Br _ 2 / FeBr _ 3 in CCl _ 4 produced a single isomer C _ 8 H _ 7 O _ 2 Br wile heating [P] with

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