Give reasons for the following:
$(a)$ School bells are made of metals.
$(b)$ Electrical wires are made of copper.

Which of the following are not ionic compounds?
$(i)$ $KCl$
$(ii)$ $HCl$
$(iii)$ $CCl_4$
$(iv)$ $NaCl$

What is the position of hydrogen in the periodic table?

Which of the following metals is obtained in free state in nature?

Which one of the following four metals would be displaced from the solution of its salts by the other three metals?

$(a)$ What type of ores are calcined? Illustrate by giving a suitable example.
$(b)$ In what form is the calcined ore obtained,and how can it be reduced? Give chemical equations of the reduction process involved for the example provided by you.
$(c)$ Name two metals used as reducing agents by displacing metals of lower reactivity from their compounds.