Semiconductor Electronics Materials Devices and Simple Circuits - Result Question 52

53. Diamond is very hard because

[1993]

(a) it is a covalent solid

(b) it has large cohesive energy

(c) high melting point

(d) insoluble in all solvents

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Answer:

Correct Answer: 53. (b)

Solution:

  1. (b) Diamond is very hard due to large cohesive energy.