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Q: What is the use of dilute nitric acid in chloride limit test
  • A. To give turbidity
  • B. To prevent precipitation of other acid radicals
  • C. To Precipitate chlorides
  • D. To give yellow colour
Correct Answer: Option B - Dilute nitric acid is used to prevent precipitation of other acid radicals in the chloride limit test, This test is based on the reaction of soluble chloride with silver nitrate in presence of dilute nitric acid to form silver chloride.
B. Dilute nitric acid is used to prevent precipitation of other acid radicals in the chloride limit test, This test is based on the reaction of soluble chloride with silver nitrate in presence of dilute nitric acid to form silver chloride.

Explanations:

Dilute nitric acid is used to prevent precipitation of other acid radicals in the chloride limit test, This test is based on the reaction of soluble chloride with silver nitrate in presence of dilute nitric acid to form silver chloride.