Question

VIII. With the help of a balanced equation, explain what happens when a) Iron reacts with copper sulphate solution. b) Magnesium reacts with hydrochloric acid. c) Iron is exposed to moist air for a long time. d) Chlorine dissolved in water is exposed to sunlight.

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Answer 1

Answer:

b

Explanation:

ans b is correct

Magnesium(s)+ Hydrochloric acid(aq) → Magnesium chloride(aq) + Hydrogen(g)

Answer 2

Answer:

Explanation:

Iron displaces copper ions from an aqueous solution of copper sulphate. ... In this reaction, metallic iron is converted into ferrous ion (Fe2+) and cupric ion (Cu2 +) is converted into metallic copper. Fe (s) + Cu2 + (aq) —→ Fe2+ (aq) + Cu (s).