Find the rate law for the reaction, \(\mathrm{CHCl}_{3(\mathrm{~g})}+\mathrm{Cl}_{2(\mathrm{~g})} \rightarrow \mathrm{CCl}_{4(\mathrm{~g})}+\mathrm{HCl}_{(\mathrm{g})}\) if order of reaction with respect to \(\mathrm{CHCl}_{\mathrm{a}(\mathrm{g})}\) is one and \(\frac{1}{2}\) with \(\mathrm{Cl}_{2(\mathrm{~g})}\).

1. A Rate \(=\mathrm{k}\left[\mathrm{CHCl}_3\right]\left[\mathrm{Cl}_2\right]^{1 / 2}\)
2. B Rate \(=\mathrm{k}\left[\mathrm{CHCl}_3\right]^2\left[\mathrm{Cl}_2\right]^{1 / 2}\)
3. C Rate \(=\mathrm{k}\left[\mathrm{CHCl}_3\right]^{3 / 2}\left[\mathrm{Cl}_2\right]\)
4. D Rate \(=\mathrm{k}\left[\mathrm{CHCl}_3\right]^{1 / 2}\left[\mathrm{Cl}_2\right]\)