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# Which is most viscous?

$(a)\;CH_3OH \\ (b)\;C_2H_5OH \\(c)\;CH_2OH -CH_2OH \\(d)\;\text{none of these}$
Can you answer this question?

Due to the presence of two OH groups $CH_2OH- CH_2OH$ its extent of H- bonding is more , hence it is most viscous.
Hence c is the correct answer.
answered Apr 2, 2014 by