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Standard XII

Chemistry

Decarboxylation

Assertion :Ac...

Question

Assertion :Acetylene reacts with sodamide to evolve $H_{2}$ gas. Reason: Acetylene is a weaker acid than ammonia.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Both Assertion and Reason are incorrect

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Solution

The correct option is C Assertion is correct but Reason is incorrect
$Correct assertion.$ Acetylene reacts with sodamide to evolve $N H_{3}$

, i.e.,
$C H C H + N a N H_{2} \to C H C H^{-} N a^{+}$

$Correct reason.$ Acetylene is a stronger acid than ammonia.

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Similar questions

Assertion (A) Ethanol is a weaker acid than phenol.
Reason (R) Sodium ethoxide may be prepared by the reaction of ethanol with aqueous NaOH.
(a) Assertion and reason both are correct and reason is correct explanation of assertion.
(b) Assertion and reason both are wrong statements.
(c) Assertion is correct statement but reason is wrong statement.
(d) Assertion is wrong statement but reason is correct statement.
(e) Both assertion and reason are correct statements but reason is not correct explanation of assertion.

Q. Assertion: The compressibility factor for

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and

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ASSERTION: n-Pentane and n-Hexane belong to a homologous series.

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Assertion :Acetylene reacts with sodamide to evolve H2 gas. Reason: Acetylene is a weaker acid than ammonia.

The correct option is C Assertion is correct but Reason is incorrectCorrect assertion. Acetylene reacts with sodamide to evolve NH3, i.e.,CHCH+NaNH2→CHCH−Na+ Correct reason. Acetylene is a stronger acid than ammonia.

Assertion :Acetylene reacts with sodamide to evolve $H_{2}$ gas. Reason: Acetylene is a weaker acid than ammonia.

The correct option is C Assertion is correct but Reason is incorrect
$Correct assertion.$ Acetylene reacts with sodamide to evolve $N H_{3}$

, i.e.,
$C H C H + N a N H_{2} \to C H C H^{-} N a^{+}$

$Correct reason.$ Acetylene is a stronger acid than ammonia.