JEE MAIN - Chemistry (2025 - 3rd April Evening Shift - No. 1)
Given below are two statements:
Statement I : Wet cotton clothes made of cellulose based carbohydrate takes comparatively longer time to get dried than wet nylon polymer based clothes.
Statement II : Intermolecular hydrogen bonding with water molecule is more in nylon-based clothes than in the case of cotton clothes.
In the light of above statements, choose the correct answer from the options given below
Explanation
The correct choice is Option D: Statement I is true but Statement II is false.
Explanation:
Statement I (True)
Cotton fibers are made of cellulose, which has a large number of –OH groups. These hydroxyls form strong hydrogen bonds with water, so cotton holds onto moisture and dries more slowly than nylon.
Statement II (False)
Nylon contains only a few amide –NH and C=O groups per repeat unit, so it forms fewer hydrogen bonds with water than cellulose does. In other words, cotton actually has more intermolecular H-bonding with water than nylon.
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