(a) Has a high melting point

(b) Has a low melting point

(c) Conducts electricity in molten state

(d) Occurs as solid

Answer: (b) Has a low melting point

Reason: X is a metal that is electropositive as it loses an electron and Y is not a metal as it gains an electron. The compound built between metal and non-metal is an ionic compound. Ionic chemicals are strong, good conductor in the molten state and have a high melting point.