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NEET levelSingle correct optionDifficulty 1 of 3pn167

In the Haber process for ammonia, , the catalyst and promoter used are respectively

  1. Afinely divided iron and molybdenum
  2. B and potassium sulphate
  3. Cplatinum-rhodium gauze and iron
  4. Dnickel and aluminium

Answer: A

The Haber process uses finely divided iron as catalyst with molybdenum (or oxides of K and Al) as promoter, at about 200 atm and 700 K. Platinum-rhodium gauze is used in the Ostwald process and in the contact process.
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