Assertion : Formaldehyde cannot be prepared by Rosenmund's reduction.

Reason : Acid chlorides can be reduced into aldehydes with hydrogen in boiling xylene using palladium or platinum as a catalyst supported on barium sulphate. This is known as Rosenmund's reduction.

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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If assertion is false but reason is true.

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Solution

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

HCHO cannot be prepared by Rosenmund's reduction because formyl chloride is unstable at room temperature.

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Similar questions

Assertion : Formaldehyde cannot be prepared by Rosenmund's reduction.

Reason : Acid chlorides can be reduced into aldehydes with hydrogen in boiling xylene using palladium or platinum as a catalyst supported on barium sulphate. This is known as Rosenmund's reduction.

Q. Catalyst used in Rosenmund reduction is

$P d / B a S O_{4}$

Zn-Hg couple

L i A l H_{4}

N i / H_{2}

Q. In the Rosenmund reduction, the catalyst used is :

Q. What happens when:
(a) Acetyl chloride is reduced with hydrogen in presence of barium sulphate associated with palladium.
(b) Benzaldehyde boils with

45

N a O H

.
(c) Ammonia reacts with formaldehyde.
(d) Acetic-Acid reacts with -

P {C l}_{5}

Q. Catalyst used in Rosenmund reduction is

$P d / B a S O_{4}$

L i A l H_{4}

N i / H_{2}

Zn-Hg couple

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Assertion : Formaldehyde cannot be prepared by Rosenmund's reduction. Reason : Acid chlorides can be reduced into aldehydes with hydrogen in boiling xylene using palladium or platinum as a catalyst supported on barium sulphate. This is known as Rosenmund's reduction.

The correct option is B If both assertion and reason are true but reason is not the correct explanation of the assertion. HCHO cannot be prepared by Rosenmund's reduction because formyl chloride is unstable at room temperature.

Assertion : Formaldehyde cannot be prepared by Rosenmund's reduction.

Reason : Acid chlorides can be reduced into aldehydes with hydrogen in boiling xylene using palladium or platinum as a catalyst supported on barium sulphate. This is known as Rosenmund's reduction.

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

HCHO cannot be prepared by Rosenmund's reduction because formyl chloride is unstable at room temperature.