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ChemistryNEET 2021Types of redox reactions

Redox Reactions

Which of the following reactions is a metal displacement reaction? Choose the right option.

  1. A.2KClO3→Δ2KCl+3O2\mathrm{2KClO_3 \xrightarrow{\Delta} 2KCl + 3O_2}
  2. B.Cr2O3+2Al→ΔAl2O3+2Cr\mathrm{Cr_2O_3 + 2Al \xrightarrow{\Delta} Al_2O_3 + 2Cr}✓
  3. C.Fe+2HCl→FeCl2+H2\mathrm{Fe + 2HCl \rightarrow FeCl_2 + H_2}
  4. D.2Pb(NO3)2→2PbO+4NO2+O2\mathrm{2Pb(NO_3)_2 \rightarrow 2PbO + 4NO_2 + O_2}

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