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Chemistry Hard PMS Uploaded: 04 Sep 2026

The Contact process is used industrially to manufacture:

  • A Nitric acid
  • B Sodium carbonate
  • C Ammonia
  • D Sulfuric acid
Correct Answer: Option D — Sulfuric acid
Explanation:
The Contact process is the primary industrial method for manufacturing sulfuric acid, involving the catalytic oxidation of sulfur dioxide to sulfur trioxide using vanadium pentoxide as a catalyst.
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