Question

Silver iodide is used in bringing about artificial rain because silver iodide

• A. is easily decomposed in presence of sunlight
• B. contains iodide ions which are large in size
• C. has crystal structure similar to ice and leads to coagulation
• D. being heavy, its spray brings the water droplets down

Answer 1

Answer: (C)

has crystal structure similar to ice and leads to coagulation

$A{g}^{+}{I}^{-}$ brings about coagulation of water droplets easily.