Q33 of 152 Page 46

What do you mean by a precipitation reaction? Explain giving an example.

Reaction in which an insoluble solid(precipitate) is formed which separates from the solution is called a precipitation reaction.

Ex- Barium Chloride and Sodium sulphate solution reacts to form a white precipitate called Barium sulphate is a precipitation reaction.




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32 Give one example of a oxidation -reduction reaction which is also:

(a) a combination reaction


(b) a displacement reaction

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(i) oxidation (ii) reduction

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