MCQ
Mercury does not wet glass, wood or iron because
- ACohesive force is less than adhesive force
- ✓Cohesive force is greater than adhesive force
- CAngle of contact is less than $90^o$
- DCohesive force is equal to adhesive force
✓
Answer
Correct option: B.
Cohesive force is greater than adhesive force
b
(b) Cohesive force is greater than adhesive force.
(b) Cohesive force is greater than adhesive force.
Therefore, no mercury particles are left behind on glass, wood or iron.
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