Assertion: Diamond is the hardest substance on the earth. Reason: It has high melting point.

Question

Assertion: Diamond is the hardest substance on the earth. Reason: It has high melting point. (A) If both assertion and reason are true and reason is the correct explanation of assertion (B) If both assertion and reason are true but reason is not the correct explanation of assertion (C) If assertion is true but reason is false (D) If both assertion and reason are false

Tardigrade Admin · Accepted Answer

Diamond has a three-dimensional network involving strong C— C bonds which are very difficult to break and hence, it is the hardest substance found on the earth and has high melting point.

Q. Assertion : Diamond is the hardest substance on the earth.
Reason : It has high melting point.

If both assertion and reason are true and reason is the correct explanation of assertion

If both assertion and reason are true but reason is not the correct explanation of assertion

If assertion is true but reason is false

If both assertion and reason are false

Diamond has a three-dimensional network involving strong $C — C$ bonds which are very difficult to break and hence, it is the hardest substance found on the earth and has high melting point.

Q. Assertion : Diamond is the hardest substance on the earth. Reason : It has high melting point.