Chemistry - Chemical Equilibrium Question with Solution | TestHub

A reaction in which $\Delta {\mathrm{n}}_{\mathrm{g}}$ is zero is not affected by change in pressure, considering various given reactions (a) $\Delta {\mathrm{n}}_{\mathrm{g}}=2-2=0$ (b) $\Delta {\mathrm{n}}_{\mathrm{g}}=2-(3+1)=-2$ (c) $\Delta {\mathrm{n}}_{\mathrm{g}}=2-1=+1$ [Consider only gaseous substances] (d) $\Delta {\mathrm{n}}_{\mathrm{g}}=2-(2+1)=-1$ Thus, (a) is the correct option.