A) Glycol
B) Ethanol
C) Water
D) Acetone
Correct Answer: A
Solution :
\[\left[ \underset{C{{H}_{2}}OH}{\overset{C{{H}_{2}}OH}{\mathop{|}}}\, \right]\]has maximum viscosity because one molecule of glycol possess two ?OH groups which have greater intermolecular hydrogen bonding. Ethanol \[{{C}_{2}}{{H}_{5}}OH\]has one ?OH group which form one hydrogen bond. Acetone \[C{{H}_{3}}COC{{H}_{3}}\]does not form hydrogen bond.
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