Question

39. निम्नलिखित में रिडॉक्स अभिक्रिया कौन है ?
- (A)Na,CO 3 + H2O + CO2 → 2 NaHCO 3
(B) CaCO3 + CaO + CO2
(C) Na2SO4 + BaCl2 → BaSO 4 + 2 NaCl
(D) MnO2+ 4HCl → MnCl2 + H2O + Cl2
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Answer 1

Answer:

D) because in this reaction MnO2 is getting reduced and hcl is getting oxidised in the form of H2O

Others are the examples of combination, decomposition and displacement reaction respectively.

Hope it helps!