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42
MCQ (Single Correct Answer)

Assertion (A) Formaldehyde is a planar molecule.

Reason (R) It contains $\mathrm{sp}^2$ hybridised carbon atom.

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
Assertion and reason both are correct statements but reason is not correct explanation of assertion.
43
MCQ (Single Correct Answer)

Assertion (A) Compounds containing - $\mathrm{CH0}$ group are easily oxidised to corresponding carboxylic acids.

Reason (R) Carboxylic acids can be reduced to alcohols by treatment with $\mathrm{LiAlH}_4$.

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
Assertion and reason both are correct statements but reason is not correct explanation of assertion.
44
MCQ (Single Correct Answer)

Assertion (A) The $\alpha$-hydrogen atom in carbonyl compounds is less acidic.

Reason (R) The anion formed after the loss of $\alpha$-hydrogen atom is resonance stabilised.

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
Assertion and reason both are correct statements but reason is not correct explanation of assertion.
45
MCQ (Single Correct Answer)

Assertion (A) Aromatic aldehydes and formaldehyde undergo Cannizzaro reaction.

Reason (R) Aromatic aldehydes are almost as reactive as formaldehyde.

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
Assertion and reason both are correct statements but reason is not correct explanation of assertion.
46
MCQ (Single Correct Answer)

Assertion (A) Aldehydes and ketones, both react with Tollen's reagent to form silver mirror.

Reason (R) Both, aldehydes and ketones contain a carbonyl group.

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
Assertion and reason both are correct statements but reason is not correct explanation of assertion.
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