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ChemistryNEET 2024Types of redox reactions

Redox Reactions

Which reaction is not a redox reaction?

  1. A.2KClO3+I2→2KIO3+Cl2\mathrm{2KClO_3 + I_2 \rightarrow 2KIO_3 + Cl_2}
  2. B.H2+Cl2→2HCl\mathrm{H_2 + Cl_2 \rightarrow 2HCl}
  3. C.BaCl2+Na2SO4→BaSO4+2NaCl\mathrm{BaCl_2 + Na_2SO_4 \rightarrow BaSO_4 + 2NaCl}✓
  4. D.Zn+CuSO4→ZnSO4+Cu\mathrm{Zn + CuSO_4 \rightarrow ZnSO_4 + Cu}

Solution

BaCl2+Na2SO4→BaSO4+2NaCl\mathrm{BaCl_2 + Na_2SO_4 \rightarrow BaSO_4 + 2NaCl} is a double displacement (precipitation) with no change in any oxidation number. The other three involve electron transfer.

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