Class IX, Science (Chemistry) CBSE Guide - CBSE Questions Chapter-2, Is Matter Around Us Pure Multiple Choice Questions (MCQ) Question.1: Which one of the following may be termed as a pure substance - (a) sodium chloride (b) soft drink (c) aerosol (d) soil. Question.2: Which of the following is a compound - (a) air (b) solution (c) marble (d) stainless steel Question.3: A
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