Two test tubes A and B contain soft water and hard water respectively. A few drops of soap solution is added to each. It is observed thatA) Lather is produced in A and not B B) Lather is produced in B and not A C) Lather is neither produced in A nor B D) Lather is produced in both A and B
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A (lather os produced in test tube Aand not in B.)
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lather is produced in a and not in b
the probable cause of the formation of the lather is that the magnesium salts and the calcium salts present in the hard water reacts with the soap solution so as to remove the hardness of the water
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