61. The chemical used for cloud seeding for artificial rains is A.Silver Nitrate B.Potassium Bromide C.Silver Iodide D.Potassium Nitrate
Answer: Option C Solution: The most common chemicals used for cloud seeding include silver iodide, potassium iodide and dry ice (solid carbon dioxide) and Liquid propane. These salt particles act as a core (cloud condensation nuclei or ice-nucleating particles) which draw water vapour within the cloud towards them.