Question

Examples of change in colour eqautions in chemical reactions

Answer 1

Answer: Reactions in which colour change occurs -

1) Blue to green

CuSO4 + Fe --> FeSO4 + Cu

2) Green to colourless -

Fe(OH)2 + Zn --> Zn(OH)2 + Fe

3) Colorless to blue -

Al2(SO4)3 + Cu --> CuSO4 + Al

4) Green to colourless -

Fe(OH)3 + Al --> Al(OH)3 + Fe

Explanation:

Answer 2

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