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  9. Q388

RRB Group D (Level-1 posts) 2022 · Question 388 of 598

Caustic soda is generally NOT used in the ___________.

  1. Adetergent industry
  2. Bfabric industry
  3. Cpaper and pulp industry
  4. Dmanufacture of ammoniaCorrect

Answer: D. manufacture of ammonia

Explanation

Caustic soda (sodium hydroxide) is commonly used in the detergent, fabric, and paper industries but is not used in ammonia manufacturing.

Source: RRB Group D 2022 Prev. Yr. Paper (18 Aug 2022) (Shift 2) - Prepp · reliable-secondary

← Q387View full paper (598 questions)Q389 →

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