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Question
Class 10ChemistryCarbon and Its Compounds

For question two statements are given- one labelled Assertion (A) and the other labelled Reason (R). Select the correct answer to these questions from the codes (a), (b), (c) and (d) as given below:

  1. Both A and R are true, and R is correct explanation of the assertion.
  2. Both A and R are true, but R is not the correct explanation of the assertion.
  3. A is true, but R is false.
  4. A is false, but R is true.

Assertion: Olefins have the general formula CnH2n+1.

Reason: There is at least one double bond between two carbon atoms in their molecules.

Verified Answer

(d) A is false, but R is true.

Explanation:

Olefins are unsaturated hydrocarbons. There is at least one double bond between two carbon atoms in their molecules and they have the general formula CnH2n.

For question two statements are given- one labelled Assertion (A) and the other labelled Reason (R). Select the correct answer to these questions from the codes (a), (b), (c) and (d) as given below: Both A and R are true, and R is correct explanation of the assertion. Both A and R are true, but R is not the correct explanation of the assertion. A is true, but R is false. A is false, but R is true. Assertion: Olefins have the general formula CnH2n+1. Reason: There is at least one double bond between two carbon atoms in their molecules. | Shiksha Nation