Match the following columns Column I Column II A. Molecular oxygen...

Options

1. A$$\begin{array}{cccc}\text{ Codes } & & \\ \text{ A } & B & C & D \\ 2 & 3 & 4 & 1\end{array}$$
2. B$$\begin{array}{cccc}\text{ Codes } & & \\ \text{ A } & B & C & D \\ 3 & 4 & 2 & 1\end{array}$$
3. C$$\begin{array}{cccc}\text{ Codes } & & \\ \text{ A } & B & C & D \\ 2 & 1 & 3 & 4\end{array}$$
4. D$$\begin{array}{cccc}\text{ Codes } & & \\ \text{ A } & B & C & D \\ 4 & 3 & 1 & 2\end{array}$$