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Chemistry CBSE Live product
Class 10 (2026-27)
Chemical reactions and equations
Displacement reaction
4.
Observations in single displacement reaction
Question:
4
m.
Go through the following question and provide the answer:
A green solution X turns colourless when metal Y is added. A grey metal gets deposited and a solution Z is formed.
Identify X, Y, and Z.
i. X is
Zinc sulphate
Copper sulphate
Calcium carbonate
Iron sulphate
ii. Y is
Silver
Zinc
Iron
Copper
iii. Z is
Zinc sulphate
Copper sulphate
Iron sulphate
Silver
iv. The balanced equation is
\(FeSO_4 + Cu → Fe + CuSO_4\)
\(AgNO_3 + Cu → CuNO_3 + Ag\)
\(CuSO_4 + Fe → Cu + FeSO_4\)
\(FeSO_4 + Zn → Fe + ZnSO_4\)
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