Most ionic compound have :

Most ionic compound have :

i) Ionic compounds have high M.P and high B.P.

ii) high melting points and non-directional bonds.

iii)  high solubilities in polar solvents and low solubilities in non-polar solvents.

iv) three-dimensional crystal structures, and are good conductors of electricity in the molten state.

Thus, the correct option are b,c and d.