Assertion A: Butan-1-ol has higher boiling point than ethoxyethane. Reason R: Extensive hydrogen bonding leads to stronger association of molecules. [2023]

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Q.
Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R.

Assertion A: Butan-1-ol has higher boiling point than ethoxyethane.

Reason R: Extensive hydrogen bonding leads to stronger association of molecules.

In the light of the above statements, choose the correct answer from the options given below: [2023]

1 Both A and R are true but R is not the correct explanation of A

2 A is false but R is true

3 Both A and R are true and R is the correct explanation of A

4 A is true but R is false

Ans.
(3)

Due to intermolecular hydrogen bonding in Butane-1-ol, association of molecule increases resulting increase in attraction between the molecules and hence boiling point increases.

Solution

1 Both A and R are true but R is not the correct explanation of A

2 A is false but R is true

3 Both A and R are true and R is the correct explanation of A

4 A is true but R is false

Ans.
(3)

Due to intermolecular hydrogen bonding in Butane-1-ol, association of molecule increases resulting increase in attraction between the molecules and hence boiling point increases.

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Solution

1 Both A and R are true but R is not the correct explanation of A

2 A is false but R is true

3 Both A and R are true and R is the correct explanation of A

4 A is true but R is false

Ans. (3) Due to intermolecular hydrogen bonding in Butane-1-ol, association of molecule increases resulting increase in attraction between the molecules and hence boiling point increases.

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Ans.
(3)

Due to intermolecular hydrogen bonding in Butane-1-ol, association of molecule increases resulting increase in attraction between the molecules and hence boiling point increases.