At room temperature, none of the metals are
a. soft.
b. liquids.
c. malleable.
d. gases.

Answer : At room temperature, none of the metals are gases.

Explanation :

The properties of metals are :

Generally all the metals are solid at room temperature but with exception, the mercury is liquid at room temperature.

Generally all the metals are hard but with the exception, sodium and potassium are soft and easily cut with the knife.

The metals are malleable, ductile, lustrous in nature.

Metals are good conductor or heat and electricity.

Hence, At room temperature, none of the metals are gases.