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Chemistry · May / June 2022 · Paper 11 · Question 31

5070Noble gases

Which gases are used in light bulbs? 1 argon 2 oxygen 3 neon

  1. A1 only
  2. B1 and 2 only
  3. C1 and 3 only
  4. D1, 2 and 3

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Correct answer: C. 1 and 3 only

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