MolSynapsequestion bank
MolSynapse / Question bank / Metallurgy / Hydrometallurgy and leaching
JEE Advanced levelSingle correct optionDifficulty 3 of 3mt055

In the Mond process of crude nickel containing Ni is treated with CO at about : , and the impurities do not react. With , , , and at STP, the volume of CO at STP consumed and the mass of formed are

  1. A2141 L and 4.09 kg
  2. B535 L and 4.09 kg
  3. C3417 L and 4.09 kg
  4. D2141 L and 1.41 kg

Answer: A

Moles of Ni . Each Ni takes 4 CO, so CO mol and . The carbonyl has molar mass , so mass . The carbonyl is later decomposed near 450 K to give pure nickel.
Practice Metallurgy More on Hydrometallurgy and leaching

More questions on Hydrometallurgy and leaching