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Which one is having least density?

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+1 vote
in Mass Transfer by (37.1k points)
Which one is having least density?

(a) Clay

(b) Coal

(c) Cotton

(d) Banana

This question was posed to me during an online exam.

Origin of the question is Density topic in chapter Modes and Diffusion of Mass Transfer

1 Answer

0 votes
by (39.8k points)
The correct answer is (c) Cotton

The best explanation: Cotton is a soft, fluffy staple fiber that grows in a boll. The fiber is spun into yarn or thread. Density of cotton is 80 kg/m^3 while that of clay, coal and banana are 1460 kg/m^3, 1350 kg/m^3 and 980 kg/m^3.

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