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1. Which of the following reactions cannot occur -
2. Which of the following is the sulphide ore of copper -
Answer variants:
Cuprite
Copper Glance
CuSO_4(aq) + Zn(s) → ZnSO_4(aq) + Cu(aq)
CuSO_4(aq) + 2Ag(s) → Cu(s) + Ag_2SO_4(aq)
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