Which of the following chemicals is used to cause artificial rain (cloud seeding)?

This question was previously asked in
SSC GD 17 Nov 2021 Shift 3 (Official Paper)
View all SSC GD Constable Papers >
  1. Hydrogen bromide
  2. Silver iodide
  3. Silver oxide
  4. Aluminium sulphide

Answer (Detailed Solution Below)

Option 2 : Silver iodide
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Detailed Solution

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The correct answer is Silver Iodide

Key Points

  1. Artificial rain is created by seeding clouds with Silver Iodide.
  2. Seeding of Clouds refers to the process of making precipitation fall using substances like dry ice, and silver iodide.
  3. Cloud seeding chemicals include silver iodide, potassium iodide and dry ice.
  4. Cloud seeding is an artificial way to create moisture in the clouds so as to cause rainfall.

Important Points

Silver Iodide

 

  • Highly photosensitive
  • Used as antiseptic and in cloud seeding
  • Chemical Formula: AgI
Hydrogen Bromide
  • Chemical Formula: HBr
  • Colorless gas
  • Soluble in water
  • Used in pharmaceuticals, industrial drying, etc.
Silver Oxide
  • Chemical formula: Ag2O
  • The form is like Black brown powder
  • Used in alkaline batteries.
Aluminium Sulphide
  • Chemical Formula: Al2S3
  • Colorless and has crystal like structure.
  • Used in hydrogen sulfide, papermaking industry.
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