Carboxylic Acids Question 2

Question: Which decolourises the colour of acidic $ KMnO_4 $

[CPMT 1991]

Options:

A) $ CH_3COOH $

B) $ CH_3CH_2COOH $

C) $ COOH.COOH $

D) $ CH_3COOC_2H_5 $

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Answer:

Correct Answer: C

Solution:

$ \begin{matrix} COOH \\ \overset{|}{\mathop{C}}OOH \\ \end{matrix}+KMnO_4+H_2SO_4\to 2CO_2+H_2O $

$ +K_2SO_4+MnSO_4 $