A deep brown gas is formed by mixing two colourless gases which are

A deep brown gas is formed by mixing two colourless gases which are
  1. $\mathrm{NO}_{2}$ and $\mathrm{O}_{2}$
  2. $\mathrm{N}_{2} \mathrm{O}$ and $\mathrm{NO}$
  3. $\mathrm{NO}$ and $\mathrm{O}_{2}$
  4. $\mathrm{NH}_{3}$ and $\mathrm{HCl}$

Solution

$2 \mathrm{NO}+\mathrm{O}_{2} ightarrow 2 \mathrm{NO}_{2}$ brown

Asked in: JEE-TOPICTESTS-CHEMISTRY

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