In which solvent is sulphur soluble?

State three reasons for the following fact:
$(a)$ Sulphur is a non-metal.
One of the reasons must be supported with a chemical equation.

Name two metals which have very low melting points.

Provide one exception for each of the following general statements:
$(i)$ Metals are lustrous.
$(ii)$ Metals are solids at room temperature.
$(iii)$ Metals have high melting points.
$(iv)$ Non-metals are non-lustrous.
$(v)$ Non-metals are insulators or non-conductors of electricity.

Which of the following properties is generally not shown by metals?

Which of the following is a semiconductor element?