pBlock ElementsII - Result Question 83

####78. The Haber’s process can be represented by the following scheme.

Identify A,B,C,D and E.

(1999,5M)

79 (a) In the following equation

A+2B+H2OC+2D (A=HNO2,B=H2SO3,C=NH2OH)  Identify D. Draw the structures of A,B,C and D

(b) In the contact process for industrial manufacture of sulphuric acid, some amount of sulphuric acid is used as a starting material. Explain briefly. What is the catalyst used in the oxidation of SO2 ?

(1999, 10M)

Show Answer

Solution:

  1. In given scheme : A=Ca(OH)2

B=NH4HCO3,C=Na2CO3

D=NH4Cl and E=CaCl2



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