which of the following materials fall in the category of a pure substance a a ice B milk C iron d hydrochloride acid calcium oxide Mercury brick wood air.
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Explanation:
Ice, iron, hydrochloric acid, calcium oxide, mercury are pure substances as they have definite composition. Milk is a colloid and acts as a heterogeneous mixture hence is not a pure substance. Brick and air are made up of more than one substance hence they also don't fall in the category of pure substances.
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Explanation:
Pure substances are defined as substances that are made of only one type of atom or molecule.
The pure substances are:
(a) Ice
(c) Iron
(d) Hydrochloric acid
(e) Calcium oxide
(f) Mercury
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