Viscosity of a liquid arises due to strong intermolecular forces existing between the molecules. Stronger the intermolecular forces, greater is the viscosity.
Name the intermolecular forces existing in the following liquids : Water and glycerine

Hydrogen bonding

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London forces

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Vander waal 's forces

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Steric repulsion

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Solution

The correct option is A Hydrogen bonding
In water and glycerine, the intermolecular forces that exists is $-$ Hydrogen bonding.
In case of Hexane, $-$ Dispersion forces / London forces exists.
The order of viscosities of these liquids is haxane $<$ water $<$ glycerine.
Hexane has weakest intermolecular forces and glycerine the strongest. ( three $O H$ groups).
Therefore, hexane has minimum viscosity and glycerine has maximum viscosity.

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Viscosity of a liquid arises due to strong intermolecular forces existing between the molecules. Stronger the intermolecular forces, greater is the viscosity. Name the intermolecular forces existing in the following liquids : Water and glycerine

Viscosity of a liquid arises due to strong intermolecular forces existing between the molecules. Stronger the intermolecular forces, greater is the viscosity.
Name the intermolecular forces existing in the following liquids : Water and glycerine