Question:

Match the product in Group-1 with the manufacturing process in Group-2. The correct combination is 


 

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Always connect chemicals with their classical industrial processes: Ostwald → nitric acid, Twitchell → fatty acids, Haifa → phosphoric acid.
Updated On: Jan 13, 2026
  • P-III, Q-I, R-IV, S-II
  • P-IV, Q-I, R-II, S-III
  • P-III, Q-IV, R-I, S-II
  • P-I, Q-IV, R-II, S-III
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The Correct Option is C

Solution and Explanation

P: Nitric acid → Ostwald's process (III)
Ammonia oxidation via Pt catalyst produces nitric acid.
Q: Phosphoric acid → Haifa process (IV)
The Haifa process forms phosphoric acid from phosphate rock and nitric acid.
R: Potassium chloride → Trona process (I)
Trona process yields soda ash and related salts; KCl is linked with Trona-based recovery routes.
S: Stearic acid → Twitchell process (II)
The Twitchell process splits fats/oils to produce fatty acids like stearic acid.
Thus the correct matching is:
P–III, Q–IV, R–I, S–II
Final Answer: (C)
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