Which of the following is a pure substance? *
Air
Milk
Brick
Mercury
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Answered by
9
Answer:
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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2
Answer:
answer is brick
Explanation:
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