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NTA Abhyas JEE Main2020Chemistryp Block Elements (Group 15, 16, 17 & 18)Practice

Which of the following reactions does not take place?

Options

  1. AF 2 + 2 C l - → 2 F - + C l 2
  2. BBr 2 + 2 I − → 2 Br − + I 2
  3. CC l 2 + 2 B r - → 2 C l - + B r 2
  4. DC l 2 + 2 F - → 2 C l - + F 2

Correct answer

D. C l 2 + 2 F - → 2 C l - + F 2

Step-by-step solution

C l 2 cannot displace F 2 but F 2 can displace C l 2 on account of its higher electronegativity. The SRP value of F 2 is highest in the electrochemtextcal series. So it will oxidise chlorine.

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