Is Matter Around Us Pure?
Mixtures, solutions, suspensions, colloids, separation techniques and elements vs compounds.
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Take a full mock →Q1 · Is Matter Around Us Pure? · MEDIUM
A student adds excess copper sulfate solution to a mixture containing iron filings and sulfur powder. After filtration, the residue contains a black substance. What is this black substance?
Q2 · Is Matter Around Us Pure? · EASY
Which of the following is a homogeneous mixture?