The surface tension of which of the following liquids is maximum ?
A.
$${H_2}O$$
B.
$${C_6}{H_6}$$
C.
$$C{H_3}OH$$
D.
$${C_2}{H_5}OH$$
Answer :
$${H_2}O$$
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 ).
Releted MCQ Question on Physical Chemistry >> States of Matter Solid, Liquid and Gas
Releted Question 1
Equal weights of methane and oxygen are mixed in an empty container at $${25^ \circ }C.$$ The fraction of the total pressure exerted by oxygen is