Which of the following reaction cannot be a basis for
electrochemical cell
(a) H2 + O2 →
H2O
(b) AgNO3 + Zn
→
Zn (NO3)2 + Ag
(c) AgNO3 + NaCl
→
AgCl
NaNO3
(d) KMnO4 + FeSO4 + H2SO4 →
K2SO4 + Fe(SO4)3 +
MnSO4 + H2O
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Answer:
a) H2 +02 is Hydrogen + oxgen
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