A student added the following substances to water kept in four separate beakers. He stirred the mixture well and filtered each one of them through a filter paper. He would obtain a solid residue on the filter paper in the case of (1) egg albumin
(2) common salt
(3) chalk powder
(4) alum
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A student added the following substances to water kept in four separate beakers. He stirred the mixture well and filtered each one of them through a filter paper. He would obtain a solid residue on the filter paper in the case of (3) chalk powder
Explanation:
Chalk powder (chemically identified as calcium carbonate) is unsolvable in water because it makes a precipitate in water and does not dissolve, therefore chalk powder is obtained from filter paper.
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Answer:
Chalk Powder is the correct answer.
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