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NTA Abhyas JEE Main2020Chemistryd and f Block ElementsPractice

M n 2 + can be converted into M n 7 + by reacting with

Options

  1. AS O 2
  2. BC l 2
  3. CP b O 2
  4. DS n C l 2

Correct answer

C. P b O 2

Step-by-step solution

Strong oxidising agents such as P b O 2 or sodium bismuthate ( N a B i O 3 ) oxidise M n 2 + to M n O 4 - or M n 7 + . 2 Mn 2 + + 5 PbO 2 + 4 H + → 2 MnO 4 - + 5 Pb 2 + + 2 H 2 O

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