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NEET2021ChemistryRedox ReactionsActual

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

Options

  1. A(2 KClO ₃ 2 KCl +3 O ₂ )
  2. B( Cr ₂ O ₃+2 Al Al ₂ O ₃+2 Cr )
  3. C( Fe +2 HCl FeCl ₂+ H ₂ )
  4. D(2 ~Pb ( NO ₃ )₂ 2 PbO +4 NO ₂+ O ₂ )

Correct answer

B. ( Cr ₂ O ₃+2 Al Al ₂ O ₃+2 Cr )

Step-by-step solution

Metal displacement reaction is

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