Question

To perform and observe the following reactions and classify them into :i) Combination Reaction ii) Decomposition Reaction iii) Displacement Reaction iv) Double Displacement Reaction (1) Action of water on quick lime. (2) Action of heat on ferrous Sulphate crystals (3) Iron nails kept in copper sulphate solution. (4) Reaction between sodium sulphate and barium chloride solutions observations column answers

Answer 1

(1) Action of water on quick lime.

CaO + H2O = Ca(OH)2 + heat

this is an combination reaction it is also an exothermic reaction.

(2) Action of heat on ferrous Sulphate crystals.

FeSO4 on heating in presence of oxygen gives us Fe2O3 and SO4 hence it is an decomposition reaction.

(3) Iron nails kept in copper sulphate solution.

Fe + CuSO4 = FeSO4 + Cu

this is an displacement reaction.

(4) Reaction between sodium sulphate and barium chloride solutions.

BaCl2 + Na2SO4 = 2NaCl + BaSO4

its an double displacement reaction.

Answer 2

Answer:

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