Read the assertion and reason carefully to mark the correct option out of the options given below:
Assertion: Alkyl cyanide can be prepared by carbylamine reaction

Reason: Ethyl amine when heated with chloroform in presence of alcoholic KOH, cyanide is formed.

If both assertion and reason are true and the reason is the correct explanation of the assertion.

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If both assertion and reason are true but reason is not the correct explanation of the assertion.

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If assertion is true but reason is false.

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If the assertion and reason both are false.

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Solution

The correct option is D If the assertion and reason both are false.
When primary amines are heated with chloroform in the presence of alcoholic KOH, isocyanides are formed. This reaction is known as carbylamine reaction. eg. ethyl amine gives ethyl isocyanide on treatment with $C H C l_{3}$ and alcoholic KOH.

$C_{2} H_{5} - N H_{2} E t h y l a m i n e + C H C l_{3} C h o l o f o r m + 3 K O H (a l c) Δ - \to C_{2} H_{5} - N \equiv C + 3 K C l + 3 H_{2} O$

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Similar questions

C_{6} H_{5} C H_{2} O C H_{3}

C_{6} H_{5} C H

C H_{3} O H .

Read the assertion and reason carefully to mark the correct option out of the options given below :

(a) If both assertion and reason are true and the reason is the correct explanation of the assertion.

(b) If both assertion and reason are true but reason is not the correct explanation of the assertion.

(d) If the assertion and reason both are false.

(e) If assertion is false but reason is true.

Assertion: Acetic acid does not undergo haloform reaction.

Reason: Acetic acid has no alpha hydrogens.

N a_{2} C r_{2} O_{7}

N a_{2} C r_{2} O_{7}

^{2 +}

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