Identify the gases used to fill in electric bulbs?

Identify the gases used to fill in electric bulbs?
  1. Ar and $\mathrm{N}_2$
  2. He and $\mathrm{O}_2$
  3. $\mathrm{He}$ and $\mathrm{N}_2$
  4. $\mathrm{Ne}$ and $\mathrm{He}$

Solution

Theory based.

Asked in: MHT CET 2022 (08 Aug Shift 1)

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