States of Matter - Result Question 50
####51. The surface tension of which of the following liquid is maximum?
(a) $C_2 H_5 OH$
(b) $CH_3 OH$
(c) $H_2 O$
(d) $C_6 H_6$
[2005]
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Solution:
- (c) Due to intermolecular H-bonding the surface tension of $H_2 O$ is more than other given liquids. One $H_2 O$ molecule is joined with 4 another $H_2 O$ molecule through $H$-bond. Hydrogen bonding is in order $H_2 O>C_2 H_5 OH>$ $CH_3 OH$.
