Which of the following pairs of inert gases is used in flash bulb?

Which of the following pairs of inert gases is used in flash bulb?
  1. $\mathrm{Xe}$ and $\mathrm{He}$
  2. $\mathrm{Xe}$ and $\mathrm{Kr}$
  3. $\mathrm{Xe}$ and $\mathrm{Rn}$
  4. $\mathrm{Xe}$ and $\mathrm{Ar}$

Solution

$\mathrm{Xe}$ and $\mathrm{Kr}$ are used in flash bulbs.

Asked in: MHT CET 2020 (20 Oct Shift 2)

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