The two molecules indicated are capable of intramolecular hydrogen bonding which is likely to form more stable hydrogen bonds. Select the correct statement.

A has higher H-bonding

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B has higher H-bonding

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Both A and B have equal H-bonding

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None of these

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Solution

The correct option is B A has higher H-bonding
In A, the presence of double bond makes the $C - C$ bond more electronegative whereas in B, there is a single bond making the hydrogen bond weaker.
$H$ bond is stronger when $O H$ is attached to a higher electronegative carbon. Hence, $A$ has higher $H -$ bonding.

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Similar questions

Q. Two molecules indicated below are capable to intramolecular H-bonding. Which is likely to form more stable hydrogen bonds?

Q. Assertion (A):

H_{2} O

is liquid while

H_{2} S

is a gas at room temperature.
Reason (R):

H_{2} O

has intermolecular hydrogen bonding while H-bonds are absent in

H_{2} S

Q. Structure of molecules of two compounds are given below :
(a) Which of the two compounds will have inter molecular hydrogen bonding and which compound is expected to show intramolecular hydrogen bonding.

(b) The melting point of a compound depends on, among other things, the extent of hydrogen bonding. On this basis explain which of the above two compounds will show higher melting point.

(c) Solubility of compounds in water depends on power to form hydrogen bonds with water. Which of the above compounds will form hydrogen bond with water easily and be more soluble in it?

Question 34.1

Structures of molecules of two compounds are given below.

Which of the two compounds will have intermolecular hydrogen bonding and which compound is expected to show intramolecular hydrogen bonding?

(ii) The melting point of the compound depends on, among other things, the extent of hydrogen bonding. On this basis explain which of the above two compounds will show higher melting point?

(iii) The solubility of compounds in water depends on power to form hydrogen bonds with water. Which of the above compounds will form a hydrogen bond with easily and be more soluble in it?

Q. Statement I: Water has a higher boiling point than expected.
Statement II: Each molecule forms a hydrogen bond with an adjacent molecule.

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The two molecules indicated are capable of intramolecular hydrogen bonding which is likely to form more stable hydrogen bonds. Select the correct statement.

The correct option is B A has higher H-bondingIn A, the presence of double bond makes the C−C bond more electronegative whereas in B, there is a single bond making the hydrogen bond weaker.H bond is stronger when OH is attached to a higher electronegative carbon. Hence, A has higher H− bonding.