Which of the following materials fall in the category of a “pure


(a) Ice

(b) Milk

(c) Iron

(d) Hydrochloric acid

(e) Calcium oxide

(f) Mercury

(g) Brick

(h) Wood

(i) Air.



The substances that are made up of only one type of particles are called pure substances.

Hence, the pure substances in the above list are

Ice - made of H20

Iron - Made of Fe

Hydrochloric Acid- Made of HCl

Calcium Oxide - Made of CaO

Mercury - Made of Hg

  1. Class 9
  2. Chapter 2 Class 9 - Is Matter Around Us Pure

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Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 9 years. He provides courses for Maths and Science at Teachoo.