Question

mention which reason and balance reaction, the colour observed when: a) silver chloride is expose to sunlight.b) copper powder is strongly heated in the presence of oxygenc) place of zinc is dropped in copper sulphate solution​

Answer 1

Answer:

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Explanation:

(a) Silver chloride is exposed to sunlight. (b) Copper powder is strongly heated in the presence of oxygen. Answer: Copper undergoes oxidation and black coloured copper oxide is formed.

Answer 2

Explanation:

a.) 2Agcl(s) ________}. 2Ag(s) +Cl•2(g)

it is an example of decomposition reaction, and also it is photo chemical decomposition of AgCl

b.) 2Cu (s) + O•2(g). _______}. 2CuO(s)

(reddish brown). (black)

copper gets oxidized to copper oxide which is black in colour.

c.) Zn. + CuSo•4 _________}. ZnSo•4. + Cu

it is an example of displacement reaction.