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Question
Which of the following explains the viscous nature of glycerol
A
Vander Wall's forces
B
Covalent bonds
C
Hydrogen bonds
D
Ionic forces
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Solution
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Correct option is B. Hydrogen bonds Glycerol undergoes extensive hydrogen bonding due to the presence of 3 –OH groups. As a result the glycerol molecules are highly associated and thus it has high viscosity.
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