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ScienceCLASS 9CBSE

answered 27 Mar 2026

Which of the following materials fall into the category of “pure substance”? (a) Ice (b) Milk (c) Iron (d) Hydrochloric acid (e) Calcium oxide (f) Mercury (g) Brick (e) Wood (f) Air.

A.VERIFIED ANSWERfact-checked by tutors

Following substances from the above-mentioned list are pure substances:

Iron
Ice
Hydrochloric acid
Calcium oxide
Mercury

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Which of the following materials fall into the category of “pure