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COMEDK2019Chemistryp Block Elements (Group 15, 16, 17 & 18)

To dry ammonia gas the drying agent used is

Options

  1. Acon(c) H ₂ SO ₄
  2. BP ₂ O ₅
  3. Csoda lime
  4. Danhydrous CaCl ₂

Correct answer

C. soda lime

Step-by-step solution

NH ₃ (ammonia) gas is dried by using sodalime, because NH ₃ itself is basic in nature and only basic compound can be used to dry NH ₃ , while conc. H ₂ SO ₄ , anhy. CaCl ₂ and P ₂ O ₅ can not react with ammonia.

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