The smell of bitter almonds is given by benzaldehyde.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323949
Assertion : Lower aldehydes and ketones are soluble in water but the solubility decreases as the molecular mass increases. Reason : Aldehydes and ketones are separated by Fehling's solution.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
Lower aldehydes and ketones are soluble in water due to polar effect of \(>\mathrm{C}=\mathrm{O}\) which makes hydrogen bonds with water molecules. As the size of the aldehydes and ketones increases the hydrophobic part, i.e., alkyl chain increases which weakens the \(\mathrm{H}-\) bond formations with \(\mathrm{H}_{2} \mathrm{O}\) molecules and decreases the solubility.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323950
Assertion : Lower members of aldehydes and ketones are miscible with water. Reason : Solubility of carbonyl compounds increases with increase in molecular weight.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
The solubility of carbonyl compounds in water relies on hydrogen bonding, facilitated by hydrogen bond donating groups. However, as molecular weight increases and alkyl chains lengthen, hydrophobic interactions dominate, diminishing solubility due to the resistance of non-polar alkyl chains to interact with polar water molecules. So the option (3) is correct.
The smell of bitter almonds is given by benzaldehyde.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323949
Assertion : Lower aldehydes and ketones are soluble in water but the solubility decreases as the molecular mass increases. Reason : Aldehydes and ketones are separated by Fehling's solution.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
Lower aldehydes and ketones are soluble in water due to polar effect of \(>\mathrm{C}=\mathrm{O}\) which makes hydrogen bonds with water molecules. As the size of the aldehydes and ketones increases the hydrophobic part, i.e., alkyl chain increases which weakens the \(\mathrm{H}-\) bond formations with \(\mathrm{H}_{2} \mathrm{O}\) molecules and decreases the solubility.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323950
Assertion : Lower members of aldehydes and ketones are miscible with water. Reason : Solubility of carbonyl compounds increases with increase in molecular weight.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
The solubility of carbonyl compounds in water relies on hydrogen bonding, facilitated by hydrogen bond donating groups. However, as molecular weight increases and alkyl chains lengthen, hydrophobic interactions dominate, diminishing solubility due to the resistance of non-polar alkyl chains to interact with polar water molecules. So the option (3) is correct.
NEET Test Series from KOTA - 10 Papers In MS WORD
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CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323948
The smell of bitter almonds is given by
1 Benzaldehyde
2 Benzidene
3 Benzoic acid
4 Benzaldichloride
Explanation:
The smell of bitter almonds is given by benzaldehyde.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323949
Assertion : Lower aldehydes and ketones are soluble in water but the solubility decreases as the molecular mass increases. Reason : Aldehydes and ketones are separated by Fehling's solution.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
Lower aldehydes and ketones are soluble in water due to polar effect of \(>\mathrm{C}=\mathrm{O}\) which makes hydrogen bonds with water molecules. As the size of the aldehydes and ketones increases the hydrophobic part, i.e., alkyl chain increases which weakens the \(\mathrm{H}-\) bond formations with \(\mathrm{H}_{2} \mathrm{O}\) molecules and decreases the solubility.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323950
Assertion : Lower members of aldehydes and ketones are miscible with water. Reason : Solubility of carbonyl compounds increases with increase in molecular weight.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
The solubility of carbonyl compounds in water relies on hydrogen bonding, facilitated by hydrogen bond donating groups. However, as molecular weight increases and alkyl chains lengthen, hydrophobic interactions dominate, diminishing solubility due to the resistance of non-polar alkyl chains to interact with polar water molecules. So the option (3) is correct.