Match List-I with List-II.
| List - I | List - II | ||
| (a) | Li | (i) | Absorbent for carbon dioxide |
| (b) | Na | (ii) | Electrochemical cells |
| (c) | KOH | (iii) | Coolant in fast breeder reactors |
| (d) | Cs | (iv) | Photoelectric cell |
Choose the correct answer from the options given below:
Among the following alkaline earth metal halides, one which is covalent and soluble in organic solvents is