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Which decolourises the colour of acidic ...

Which decolourises the colour of acidic `KMnO_(4)`

A

`CH_(3)COOH`

B

`CH_(3)CH_(2)COOH`

C

`COOH.COOH`

D

`CH_(3)COOC_(2)H_(5)`

Text Solution

Verified by Experts

The correct Answer is:
C
`underset(COOH)underset(|)COOH+ KMnO_(4)+ H_(2)SO_(4) to 2CO_(2) + H_(2)O + K_(2)SO_(4) + MnSO_(4)`
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Explore conceptually related problems

Statement-1 :White crystalline precipitate of silver sulphite dissolves, if sulphite ions are added in excess Statement-2 :Sulphite ions decolourise the pink colour of acidified KMnO_(4)

Which basic radical(s) decolourize acidic KMnO_(4) ?

Sodium salt of an organic acid 'X' produces effervescence with conc. H_(2)SO_(4) . 'X' reacts with the acidified aqueous CaCl_(2) solution to give a white precipitate which decolourises acidic solution of KMnO_(4) 'X' is

The colour of KMnO_(4) is due to

Anion that cannot decolourise acidic solution of KMnO_(4) :

An acid which can decolourise purple coloured potassium permanganate solution is :

Knowledge Check

  • Statement-1 :White crystalline precipitate of silver sulphite dissolves, if sulphite ions are added in excess Statement-2 :Sulphite ions decolourise the pink colour of acidified KMnO_(4)

    A
    STATEMENT-1 is true, STATEMENT-2 is true and STATEMENT-2 is correct explanation for STATEMENT-1
    B
    STATEMENT-1 is true, STATEMENT-2 is true and STATEMENT-2 is not correct explanation for STATEMENT-2
    C
    STATEMENT-1 is true, STATEMENT-2 is false
    D
    STATEMENT-1 is false, STATEMENT-2 is true

  • Sodium salt of an organic acid 'X' produces effervescence with conc. H_(2)SO_(4) . 'X' reacts with the acidified aqueous CaCl_(2) solution to give a white precipitate which decolourises acidic solution of KMnO_(4) 'X' is

    A
    `C_(6)H_(5) COONa`
    B
    `HCOONa`
    C
    `CH_(3)COONa`
    D
    `Na_(2)C_(2)O_(4)`

  • The colour of KMnO_(4) is due to

    A
    `M rarr L` charge transfer transition
    B
    `d rarr d` transition
    C
    `L rarr M` charge transfer transition
    D
    `sigma rarr sigma` transition