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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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Similar questions

Q. The reaction

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

Q. The freezing point of

0.02

mol fraction of acetic acid in benzene is

277.4 K

. Acetic acid exists partly as a dimer. Calculate the equilibrium constant for dimerization. (approximately)
(Freezing point of

C_{6} H_{6} = 278.4 K

K_{f}

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

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Q. Molecular formula of acetic acid is

Q. In a solution of 7.8 gm benzene

C_{6} H_{6}

and 46.0 gm toluene

(C_{6} H_{5} {C H}_{3})

, the mole fraction of benzene in this solution is:

Consider the three solutions of 1M concentration

I) Sodium acetate (

{C H}_{3} C O O N a

II) Acetic acid + sodium acetate (

{C H}_{3} C O O H + {C H}_{3} C O O N a

III) Acetic acid (

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The pH of these solutions will lie in the following sequence

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