Question
Match List - I with List - II:
| List - I Species | List - II Geometry/Shape | ||
|---|---|---|---|
| A. | $\mathrm{H_3O^+}$ | I. | Tetrahedral |
| B. | Acetylide anion | II. | Linear |
| C. | $\mathrm{NH_4^+}$ | III. | Pyramidal |
| D. | $\mathrm{ClO_2^-}$ | IV. | Bent |
Choose the correct answer from the options given below: