Which gas is produced when zinc reacts with diluted hydrochloric acid?

Which metal is more reactive than magnesium $(Mg)$?

Which of the following represents the correct order of reactivity of metals?

Galvanisation is a method of protecting iron from rusting by coating it with a thin layer of:

During the refining of copper by electrolysis,copper deposits at the $....$.

Name one metal and one non-metal that exist in liquid state at room temperature. Also,name two metals having a melting point less than $310\ K$ $(37\ ^\circ C)$.