Which process occurs at the anode during the process of electrolysis?

Which gas is responsible for acid rain?

Define an alloy. How is an alloy prepared?

$(i)$ Name a metal which does not stick to glass.
$(ii)$ Name the metal which is commonly used in thermite welding.
$(iii)$ What is the nature of zinc oxide?

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

An alloy has a low melting point and is,therefore,used for electrical fuses. Name the alloy and write its constituents.