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Standard XII

Chemistry

Nucleophilic Addition at the Carbonyl

Yellow ppt.of...

Question

Yellow ppt.of compound (I) is insoluble in:

NaOH

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C H_{3} C O O H

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dil.

H N O_{3}

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none of the above

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Solution

The correct option is D $C H_{3} C O O H$
Compound (I) is chromate.
$M^{2 +} + K_{2} C r O_{4} \to M C r O_{4} ↓ + 2 K^{+}$
The yellow precipitate of compound (I) is insoluble in acetic acid. However it is soluble in NaOH and dil nitric acid.

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Yellow ppt.of compound (I) is insoluble in:

The correct option is D CH3COOHCompound (I) is chromate.M2++K2CrO4→MCrO4↓+2K+The yellow precipitate of compound (I) is insoluble in acetic acid. However it is soluble in NaOH and dil nitric acid.

The correct option is D $C H_{3} C O O H$
Compound (I) is chromate.
$M^{2 +} + K_{2} C r O_{4} \to M C r O_{4} ↓ + 2 K^{+}$
The yellow precipitate of compound (I) is insoluble in acetic acid. However it is soluble in NaOH and dil nitric acid.