Given below are two statements labelled as Assertion (A) and Reason (R).
Assertion (A): The bond angle in alcohol is slightly more than the tetrahedral angle.

Reason (R): Variation in bond angle of alcohol is due to the repulsion between the unshared electron pair of oxygen.

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

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

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A is true but R is false

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A is false but R is true

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Solution

The correct option is D A is false but R is true
The bond angle in alcohols is slightly less than the tetrahedral angle $(109^{\circ} 28^{'})$ . It is due to the repusion between the unshared electron pair of oxygen.
Hence, Assertion is incorrect but Reason is correct.

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Similar questions

Q. Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A : The H–O–H bond angle in water molecule is

{104.5}^{o}

.
Reason R : The lone pair–lone pair repulsion of electrons is higher than the bond pair-bond pair repulsion.

Q. Given below are two statements one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A: The H — O — H bond angle in water molecule is

{104.5}^{\circ}

.
Reason R: The lone pair-lone pair repulsion of electrons is higher than the bond pair-bond pair repulsion.
In the light of the above statements, choose the correct answer from the options given below.

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

H - O - H

bond angle in water molecule is

{104.5}^{o}

Reason R: The lone pair – lone pair repulsion of electrons is higher than the bond pair-bond pair repulsion.
In the light of the above statements, choose the correct Ans: from the options given below:

Assertion (A) Bond angle in ethers is slightly less than the tetrahedral angle.
Reason (R) There is a repulsion between the two bulky (- R) groups.
(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) Both assertion and reason are correct statements but reason is not correct explanation of assertion.

The bond angle in alcohols is slightly less then the tetrahedral angle. It is due to which of the following reasons:

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Given below are two statements labelled as Assertion (A) and Reason (R). Assertion (A): The bond angle in alcohol is slightly more than the tetrahedral angle. Reason (R): Variation in bond angle of alcohol is due to the repulsion between the unshared electron pair of oxygen.

The correct option is D A is false but R is trueThe bond angle in alcohols is slightly less than the tetrahedral angle (109∘28′). It is due to the repusion between the unshared electron pair of oxygen. Hence, Assertion is incorrect but Reason is correct.

Given below are two statements labelled as Assertion (A) and Reason (R).
Assertion (A): The bond angle in alcohol is slightly more than the tetrahedral angle.

Reason (R): Variation in bond angle of alcohol is due to the repulsion between the unshared electron pair of oxygen.

The correct option is D A is false but R is true
The bond angle in alcohols is slightly less than the tetrahedral angle $(109^{\circ} 28^{'})$ . It is due to the repusion between the unshared electron pair of oxygen.
Hence, Assertion is incorrect but Reason is correct.