Assertion (A) : Covalent crystals have higher melting point.
Reason (R ) : Covalent bonds are stronger than ionic bonds.

Options

A. If both `(A)` and `(R)` are correct, and `(R)` is the correct explanation of `(A)`
B. If both `(A)` and `(R)` are correct, but `(R)` is not the correct explanation of `(A)`
C. If `(A)` is correct, but `(R)` is incorrect.
D. If both `(A)` is incorrect but `(R)` is correct.

Answer

C

Explanation

Assertion is correct since higher melting points of covalent crystals are due to network structures.
Correct (R): Covalent bonds are weaker than ionic bonds.