MPSC PYQScienceConcept of Matter and Chemical Classificationenglish

What are the pure substances from the following ? (a) Iron (b) Petrol (c) Cow milk (d) Sea water Answer Options:-

A.b, c, d
B.Only a
C.(a) and b
D.a, b, c

Correct answer: B

Source paper

Concept of Matter and Chemical Classification

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