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Nomenclature

The molecular...

Question

The molecular formula of acetic acid is ___________.

A

H C O O H

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B

C H_{3} - C H_{3}

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C

C_{6} H_{6}

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D

C_{2} H_{4} O 2

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Solution

The correct option is D $C_{2} H_{4} O 2$
Acetic acid, also known as ethanoic acid or methanecarboxylic acid, is a colourless liquid with a strong and distinct pungent and sour smell. Its chemical formula is C $_{2}$ H $_{4}$ O $_{2}$ or can be written as CH $_{3}$ COOH or CH $_{3}$ CO $_{2}$ H.

Hence, the correct option is $D$

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C_{6} H_{6} \to C_{6} H_{5} {C H}_{3}

Q. The freezing point of

0.02

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277.4 K

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(Freezing point of

C_{6} H_{6} = 278.4 K

K_{f}

C_{6} H_{6} = 5 K m^{- 1}

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C_{6} H_{6}

and 46.0 gm toluene

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