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
(10)
5/5 - (2 votes)
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(a) – 5 J (b) – 10 J (c) – 15 J (d) – 20 J Answer-a (118)
(a) 34 J (b) 70 J (c) 84 J (d) 134 J Answer-d (202)