Urea (a nitrogenous fertiliser) is produced from carbon dioxide and__________________?

Correct answer: B. Ammonia

  • A. Nitric acid
  • B. Ammonia
  • C. Ammonium nitrate
  • D. Nitric oxide

Explanation

Urea is manufactured by reacting ammonia with carbon dioxide to form ammonium carbamate, which then dehydrates to urea. Nitric acid and nitric oxide are not the direct reactants in the urea process.

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