Assertion :Both o-hydroxy benzaldehyde and p-hydroxy benzaldehyde have same molecular weight and show H-bonding. Reason: Melting point of p-hydroxy benzaldehyde is more than o-hydroxy benzaldehyde.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Both Assertion and Reason are incorrect

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Solution

The correct option is B Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
o-hydroxy benzaldehyde shows chelation or intramolecular H-bonding while p-hydroxy benzaldehyde shows intermolecular H-bonding.
Due to the presence of intermolecular hydrogen bonding,p-hydroxy benzaldehyde has more melting point than o-hydroxy benzaldehyde.

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