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Hydrolysis of Cyanides

37 An organic...

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37 An organic compound A molecular formula C8H16O2 on hydrolysis with dilute sulphuric acid gives a carboxylic acid B and an alcohol C .oxidation of C with chromic aci3 gives B . C on dehydration gives but -1-ene.identify A, B,C with arrowhead equations of the reactions.

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An organic compound (A) (molecular formula C₈H₁₆O₂) was hydrolysed with dilute sulphuric acid to give a carboxylic acid (B) and an alcohol (C). Oxidation of (C) with chromic acid produced (B). (C) on dehydration gives but-1-ene.Write equations for the reactions involved.

Q. An organic compound

[A]

having molecular formula

C_{2} H_{7} N

on treatment with nitrous acid gives a compound

[B]

having molecular formula

C_{2} H_{6} O

[B]

on treatment with an organic compound

[C]

gives a carboxylic acid

[D]

and a sweet smelling compound

[E]

[B]

with acidified potassium dichromate also gives

[D]

Write balanced chemical equation of

[D]

with chlorine in the presence of red phosphorus and name the reaction.

(X)

having molecular formula

C_{4} H_{8} O_{2}

is hydrolysed by water in presence of an acid to give a carboxylic acid (Y) and an alcohol

(Z)

(Z)

on oxidation with chromic acid gives

(Y)

(X), (Y)

(Z)

Q. An organic compound (A) on treatment with acetic acid in the presence of sulphuric acid produces an ester (B), (A) on mild oxidation gives (C), (C) with

50 %

potassium hydroxide followed by acidification with dilute hydrochloric acid generates (A) and (D), (D) with phosphorus pentachloride followed by reaction with ammonia gives (E), (E) on dehydration produces hydrocyanic acid. E is an:

Q. An organic compound

[A]

having molecular formula

C_{2} H_{7} N

on treatment with nitrous acid gives a compound

[B]

having molecular formula

C_{2} H_{6} O

[B]

on treatment with an organic compound

[C]

gives a carboxylic acid

[D]

and a sweet smelling compound

[E]

[B]

with acidified potassium dichromate also gives

[D]

[A], [B], [C], [D]

[E]

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