A) \[{{H}_{2}}O\]
B) \[{{C}_{6}}{{H}_{6}}\]
C) \[C{{H}_{3}}OH\]
D) \[{{C}_{2}}{{H}_{5}}OH\]
Correct Answer: A
Solution :
Surface tension of \[{{H}_{2}}O\] is maximum due to maximum hydrogen bonding in comparison to \[{{C}_{6}}{{H}_{6}},\,C{{H}_{3}}OH,\] \[{{C}_{2}}{{H}_{5}}OH\]. The order of H-bonding is \[{{H}_{2}}O>C{{H}_{3}}OH>{{C}_{2}}{{H}_{5}}OH\] (Benzene does not form H-bond).
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