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Question

The questions given below are related to the manufacturing of ammonia.

(i) Name the process.

(ii) In what ratio must the reactants be taken.

(iii) Name the catalyst used.

(iv) Give the equation for the manufacturing of ammonia.

(v) Ammonia can act as reducing agent, write a relevant equation for such a reaction.


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Solution

Manufacturing of AmmoniaNH3

(i) Name of Process

  • AmmoniaNH3 is manufactured by Haber's process.

(ii) Ratio of reactants in manufacturing of Ammonia

  • NitrogenN2 and HydrogenH2 are the two reactants in the formation of Ammonia.
  • These are taken in ratio 1:3 by volume respectively.

(iii) Name of catalyst used

  • Finely divided IronFe is used as a catalyst.
  • Small amount of promoter MolybdenumMo is also used with the catalyst to enhance the efficiency of the catalyst.

(iv) Equation for manufacturing of Ammonia

  • N2g+3H2g450-500oC2NH3g+Heat

(Nitrogen) (Hydrogen) (Ammonia)

(v) Ammonia as a reducing agent

  • ChlorineCl2 gas is reduced to Ammonium chlorideNH4Cl in presence of excess AmmoniaNH3.
  • First Chlorine reacts with Ammonia to give Hydrogen chlorideHCl which further reacts with excess Ammonia and produces Ammonium chloride.
  • The overall reaction is as follows:
  • 8NH3g+3Cl2gN2g+6NH4Cls

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