Give an example of each of the following chemical changes:
(b) A reaction involving
(ii) formation of dirty green precipitate

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Solution

An example of a reaction involving the formation of dirty green precipitate is: When Ferrous sulphate solution is added to sodium hydroxide, then dirty green precipitate of ferrous hydroxide is formed. That is,
$F e S O_{4} (a q) + 2 N a O H (a q) \to F e (O H)_{2} ↓ + N a_{2} S O_{4} (a q)$

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Similar questions

Give an example of each of the following chemical changes.

(a) A reaction involving.

(i) Change of state.

(ii) Formation of the precipitate.

(b) An exothermic and an endothermic reaction involving carbon as one of the reactants.

Give an example of a chemical reaction which is characterised by the formation of a precipitate.

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