Answer: The correct answer option (A).
Step-by-step explanation:
Chemical properties are the properties which are observed in a chemical reaction like change in arrangement in atoms or change in identity of the substance.
Metals reacts with acid to form salts and hydrogen gas. In which chemical composition of pure metal changes during the chemical reaction. So, yes it is a chemical property of metals.
Whereas conducting electricity, property to get attracted by magnet and high melting point doesn't changes the arrangement of an atoms which means they are not chemical properties of metals but are physical properties of metal.
Hence, the correct answer option (A).