a) Barium Chloride solution is mixed with copper sulphate solution
and a white precipitate is observede
b) On heating Copper powder in air in a china dish, the surface of
coppers powder turns black
c) On heating green coloured ferrous sulphate crystals, reddish brown
solid is left and a smell of gas having odour of burning sulphur is
experienced
d) Iron nails when let dipped in blue copper sulphate solution become
brownish in colour of copper sulphate fades away.
e) Quicklime vigorously with water releasing a large amount of heat.
Answers
Answered by
4
Answer:
b)when heating a copper powder in air on a china dish it forms copper oxide
d) when iron nail let dipped in blue copper sulphate fodes away because the in the solution diposited on the iron nail
Answered by
1
Answer:
Explanation:
a) double displacement
b)combination reaction
c) thermal decomposition
d) displacement
e) combination reaction
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