Which of the following reactions cannot occur?
o CuSO4 + Zn → ZnSO4 + Cu
o CuSO4 + 2Ag — Cu + Ag2SO4
2AgNO3 + Zn → Zn(NO3)2 + 2Ag
2AgNO3 + Fe + Fe(NO3)2 + 2Ag
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Answer:
the 2nd and 3rd chemical reactions cannot occur
Explanation:
because it results as a contradiction to displacement reaction
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