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AIIMS 2001
Exam
AIIMS
Year
2001
Subject
Chemistry
Chapter
Carboxylic Acid Derivatives

AIIMS 2001 · Chemistry · Carboxylic Acid Derivatives

In the following reaction order, B is

In the following reaction order, BB is In the following reaction order, B is

Options

  1. ACH2=CH−COOH\mathrm{CH}_2=\mathrm{CH}-\mathrm{COOH}
  2. BWhat does the oxidation state of an element in a compound represent?
  3. CCH3CH2COBr\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{COBr}
  4. DCH3CH2OH\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{OH}

Correct answer

A. CH2=CH−COOH\mathrm{CH}_2=\mathrm{CH}-\mathrm{COOH}

Step-by-step solution

In the following reaction order, B is
P+Br2\mathrm{P}+\mathrm{Br}_2 is brominating agent that brominates the α\alpha-position. The product then undergo dehydrohalogenation in the presence of alcoholic potassium hydroxide.
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