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  • Classification of Elements
  • Electron affinity is positive when
Multiple choice

Electron affinity is positive when

  1. O- is formed from O

  2. O2- is formed from O

  3. O+ is formed from O

  4. None of these

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Oxygen needs two electrons to complete its octet. So, electron affinity is positive when O2- is formed from O.

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