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Stoichiometry

why does aque...

Question

why does aqueous nahco3 solution dissolve carboxyllic acid but not phenols though they are als oacidic ?

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Solution

Because NaHCO₃is polar and major part of phenyl group is not polar.b Hence its solubility in polar compounds is limited.

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Phenol does not decompose

N a H C O_{3}

C O_{2}

but picric acid does.

Q. Assertion :Alcohol and a carboxylic acid is distinguished by sodium bicarbonate test. Reason: An aqueous solution of

N a H C O_{3}

produces brisk effervescence due to the evolution of

C O_{2}

with carboxylic acid.

Carboxylic acids are more acidic than phenols, because

Q. Whish among -phenol and carboxylic acid- is more acidic? Why?

(a) Why do acids not show acidic behavior in the absence of water?

(b) Why does an aqueous solution of an acid conduct electricity?

(c) Why does distilled water not conduct electricity whereas rainwater does?

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