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Which of the following materials fall in...

Which of the following materials fall in the category of a "pure substances"? Give reasons.
(a) Ice (b) Milk (c ) Iron (d) Hydrochloric acid ( e) Calcium oxide (f) Mercury (g) Brick (h) Wood (f) Air

Text Solution

Verified by Experts

1) Except brick and wood remaining materials given in the list can be treated as pure substances.
2) Take any small part of ice, milk,iron,hydrochloric acid,calcium oxide, mercury and air and test for their components.
3) We find that the composition is same throughout them.
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