Questions
Which of the following reactions is not a redox reaction?
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By Expert Faculty of Sri Chaitanya
a
H2O2+KOH⟶KHO2+H2O
b
Cr2O72−+2O⊝H⟶2CrO42−+H2O
c
CaHCO32⟶ΔCaCO3+CO2+H2O
d
H2O2⟶H2O+12O2
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Correct option is A
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 oxidasing and a reducing agent.
Similar Questions
The value of n in the molecular formula BenAl2Si6O18 is:
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