Matter & Its States Questions with Solutions

This topic covers matter and its classification: the states of matter, changes of state (melting, evaporation, sublimation and condensation), elements, compounds and mixtures, solutions, colloids and suspensions, and methods of separating mixtures. Exam questions often ask about examples of sublimation (camphor, naphthalene and dry ice), which substances are colloids (milk, fog and blood), and which method separates which mixture, such as chromatography for the colours in ink and fractional distillation for crude oil. Know the difference between a physical change and a chemical change. Practise the matter and its states questions below, written in the style of the general awareness sections of exams such as SSC, banking, railways, CUET GAT, MAH CET and CLAT. Each question comes with a detailed explanation that adds related facts, so every question helps you revise more than one point.