Directions for Question: The questions consist of two statements each, printed as assertion and reason. While answering these questions you are required to choose any one of the following four responses:
Assertion: Lower aldehydes and ketones are Soluble in water but the solubility decreases as the molecular masses increase. Reason: Distinction between aldehydes and ketones can be made by Tollens test.A) If both A and R are true, and R is a correct explanation of the A.
B) If both A and R are true, but R is not a correct explanation of the A.
C) If A is true, but R is false.
D) If both A and R are false.
Correct Answer: B
Solution :
Lower aldehydes and ketones are soluble in water due to polar effect of \[>C=O\] 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 H-bond formations with \[{{H}_{2}}O\] molecules and decreases the solubility.
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