Questions
Which of the following is/are disproportionation redox changes?
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By Expert Faculty of Sri Chaitanya
a
NH42Cr2O7⟶N2+Cr2O3+4H2O
b
5H2O2+2ClO2+2OH-⟶2Cl⊖+5O2+6H2O
c
3ClO⊖⟶ClO3⊖+Cl⊖
d
2HCuCl2→with waterDilutionCu+Cu2++4Cl−+2H⊕
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Correct option is C
(3) 2e−+ClO⊖⟶Cl⊖ (Reduction) x−2=−1 x=−1 x=+1ClO⊖⟶ClO3⊖+4e−(Oxidation) x=1 x=5(4) In HCuCl2,Cu is in +1 oxidation state which disproportionates to Cu2+ and Cu0
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