Explanation:
Copper oxide (CuO) has a high melting point due to the following reasons:
Ionic Bonding: CuO is made up of copper ions (Cu²⁺) and oxide ions (O²⁻) which are held together by strong ionic bonds.
Electrostatic Forces: The electrostatic forces between the positively charged copper ions and negatively charged oxide ions require a lot of energy to break, contributing to the high melting point.
Lattice Structure: CuO has a crystal lattice structure that is held together by strong bonds, requiring significant energy input to overcome these bonds during melting.
Stability: The stability of the crystal lattice structure of CuO at high temperatures also contributes to its high melting point.
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