Questions
Which of the following is a redox reaction?
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a
NaCl+KNO3⟶NaNO3+KCl
b
CaC2O4+2HCl⟶CaCl2+H2C2O4
c
Mg(OH)2+2NH4Cl⟶MgCl2+2NH4OH
d
Zn+2AgCN⟶2Ag+Zn(CN)2
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Correct option is D
Zn⟶Zn2++2e−Ag⊕+e−⟶AgIn (1), (2), and (3), oxidation number does not change.Talk to our academic expert!
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