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NTA Abhyas JEE Main2020ChemistryRedox ReactionsPractice

Which of the following combination of reagents does not undergo redox reaction in aqueous medium?

Options

  1. AS n C l 2 + H g C l 2
  2. BC u S O 4 + K C N
  3. CP b ( C H 3 C O O ) 2 + K I
  4. DA g 2 O + S O 2

Correct answer

C. P b ( C H 3 C O O ) 2 + K I

Step-by-step solution

Here the reaction between P b ( C H 3 C O O ) 2 + K I is not a redox reaction while rest other are redox reactions Pb(CH 3 COO) 2 + KI → Non-redox   reaction Ion   exchange   reaction PbI 2 ↓ +   CH 3 COOK SnCl 2 + HgCl 2 → Redox Hg ↓   +   SnCl 4 CuSO 4 + KCN → K 2 SO 4 + Cu(CN) 2 ↓ → Intramolecular   redox Spontaneous   (R .T .) Cu(CN) ↓   +   (CN) 2 ↑ Ag 2 O   +   SO

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