Question

13. Identify the type of chemical reaction taking
place in each of the following:
(a) Barium chloride solution is mixed with
copper sulphate solution and a white
precipitate is observed.
(b) On heating copper powder in air in a china
dish, the surface of copper powder turns
black.
(c) On heating green coloured ferrous sulphate
crystals, reddish brown solid is left and
smell of a gas having odour of burning
sulphur is experienced.
(d) Iron nails when left dipped in blue copper
sulphate solution become brownish in
colour and the blue colour of copper
sulphate fades away.
(e) Quick lime reacts vigorously with water
releasing a large amount of heat.​

Answer 1

Answer:

a) precipitation reaction.

b) oxidation reaction

c) decomposition reaction

d) displacement reaction

e) combination reaction

Explanation:

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