Q.
Surface tension of lyophilic sols is
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a
Lower than that of H2O
b
More than that of H2O
c
Equal to that of H2O
d
None of these
answer is A.
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Detailed Solution
Surface tension of lyophilic sol is lower than that of the dispersion medium (i.e. H2O in this case.).The surface tension of lyophilic sols is lower than that of the surface tension of water as the lyophilic colloids have a great affinity towards the water solvent which decreases the surface tension.
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