Question

If melting point increases, then the atomic bonds will _________

(a) Become strong

(b) Become weak

(c) Be destroyed

(d) Be with moderate strength

I have been asked this question in examination.

This intriguing question originated from Classification of Lubricants topic in portion Lubricants of Applied Chemistry

Answer 1

The correct answer is (c) Be destroyed

To explain I would say: As the melting point increases, the atomic bonds will be destroyed. It makes the lubrication less effective.