Question

Mohan made solutions of starch, copper sulphate and alum in three different beakers in water. The
substance/substances which will form the solution/solutions are​

Answer 1

Answer:On adding zinc to Cuso4 solution, Zinc displaces Copper from Copper sulphate & forms Zinc sulphate solution because Zinc is more reactive metal which displaces less reactive metal from its solution. This is indicated by a colour change from blue to colourless.

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