Question

(1) Blue coloured solution is given in the figure. Which solution is it? What causes the

colour change in this solution. Explain.

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Answer 1

Answer:

red it change in to red ok

Explanation:

bule colour change into red

Answer 2

Explanation:

Metal oxides always reacts with acid to form salt and water. Copper oxide when reacts with HCl it forms blue-green copper(II) chloride.

2CuO+2HCl→2CuCl

2

+H

2

O