1.

Which of the following is not an example of single displacement reliction?(1) CuO + H2 → H2O + Cu (2) Zn + CuSO4 → ZnSO4 + Cu (3) AgNO3 + NaCl → AgCl + NaNO3 (4) Zn + 2HCl → ZnCl2 + H2

Answer»

(1) CuO + H2 → H2O + Cu 



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