What are the constituent elements of Magnalium?

The electrical conductivity and melting point of an alloy is:

Which alloy is used for making statues and medals?

Explain the following:
$(a)$ $NaCl$ is not a conductor of electricity in solid state,whereas it does conduct electricity in aqueous solution as well as in molten state.
$(b)$ Iron articles are galvanised.
$(c)$ Metals like $Na, K, Ca$ and $Mg$ are never found in their free state in nature.

What is mixed with natural rubber to obtain vulcanized rubber?

Metallic oxides of zinc,magnesium,and copper were heated with the following metals. In which cases will you find displacement reactions taking place?