16. Water does not wet an oily glass because
(a) Cohesive force of oil>> adhesive force between oil and glass
(b) Cohesive force of oil > cohesive force of water
(c) Oil repels water
(d) Cohesive force for water > adhesive force between water and oil molecules
Ans. d
(12)
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(a) – 5 J (b) – 10 J (c) – 15 J (d) – 20 J Answer-a (126)