Questions
Which of the following reactions is not a redox reaction?
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a
H2O2+KOH→ KHO2+H2O
b
Cr2O72-+2OH⊝→ 2CrO42-+H2O
c
CaHCO32→∆CaCO3+CO2+H2O
d
H2O2⟶H2O+12O2
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Correct option is A
(1) Oxidation state of K is +1 in both reactant and product In (2), oxidation state of Cr (+6) does not change.In (3), oxidation states of Ca and C and O do not change.In (4) , the H2O2 which disproportionates is both oxidising and a reducing agent.Talk to our academic expert!
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