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Formalin is 40% aqueous solution of :...

Formalin is `40%` aqueous solution of :

A

Methanal

B

Methanoic acid

C

Methanol

D

Methanamine

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The correct Answer is:
A
Methanal or formaldehyde is soluble in water, alcohol and ether. Its `40%` aqueous solution is marketed as formalin.
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