Which metal does not react with cold or hot water,but reacts with steam to produce $H_2$ gas?

Which alloy is composed of copper and zinc?

The ability of metals to be drawn into thin wire is known as

Which metal reacts with cold water violently?

$(a)$ List two differences between calcination and roasting in tabular form.
$(b)$ Which method will you use to reduce the following? Explain by giving a suitable example.
$(i)$ Oxides of less reactive metals.
$(ii)$ Oxides of moderately reactive metals.
$(iii)$ Oxides of highly reactive metals.

Why can oxides of highly reactive metals not be reduced by carbon?