Question

2.
Solid X is a very hard solid which is electrical
insulator in solid as well as in molten state and has
extremely high melting point. What type of solid
is it?​

Answer 1

Answer:

Here, it is given that X is a hard solid and acts as an insulator in solid as well as molten state, if it is ionic solid then in a molten state it is conductor, therefore X is not ionic solid. Here, option(B) is covalent solid. In the case of the covalent solids, a covalent bond is present between the atoms.