Assertion and Reason Questions on Class 12 Chemistry Chapter 12 ALDEHYDES, KETONES AND CARBOXYLIC ACIDS

Assertion and Reason Questions on Class 12 Chemistry Chapter 12 Aldehydes, Ketones and Carboxylic Acids

Directions: These questions consist of two statements, each printed as Assertion and Reason. While answering these questions, you are required to choose any one of the following four responses.
(a) If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.
(b) If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.
(c) If the Assertion is correct but Reason is incorrect.
(d) If both the Assertion and Reason are incorrect.

Q.1. Assertion : The boiling points of aldehydes and ketones are higher than hydrocarbons and ethers of comparable molecular masses.
Reason : There is a weak molecular association in aldehydes and ketones arising out of the dipole-dipole interactions.

Answer

a

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Q.2. Assertion : Formaldehyde is a planar molecule.
Reason : It contains sp² hybridised carbon atom.

Answer

a

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Q.3. Assertion : Compounds containing –CHO group are easily oxidised to corresponding carboxylic acids.
Reason : Carboxylic acids can be reduced to alcohols by treatment with LiAlH₄

Answer

b

---

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