Question

Performing and observing the following reaction and classifying them into:
A. Combination Reaction
B. Decomposition Reaction
C. Displacement Reaction
D. Double Displacement Reaction
i) Action of water on quicklime
ii) Action of heat on ferrous sulphate crystal
iii) Iron nails kept in coper sulphate solution
iv) Reaction between sodium sulphate and barium chloride solutions​

Answer 1

Answer:ction of water on quick lime:

-This is a combination reaction.

CaO + H2O------Ca(OH)2

The two combine to form calcium hydroxide or slaked lime.

2)Action of heat on ferrous sulfate crystals.

-This is a decomposition reaction

FeSO4----------> Fe2O3 + SO3 + SO2

-iron sulfate is decomposed by heat to form iron(III)oxide, sulfur dioxide and sulfur trioxide.

3)Iron nails kept in copper sulphate solution.

-This is a displacement reaction(single displacement)

Fe + CuSO4--------> FeSO4 + Cu

Iron displaces copper from the sulphate solution to form iron(II) sulphate.