Oxidation of ammonia is________________?

Related Mcqs:

1. The concentration (weight %) of nitric acid produced by the oxidation of ammonia and absorption of nitrogen oxides with water is about ____________ percent?

   A. 60
   B. 30
   C. 95
   D. 100

2. During nitric acid manufacture, catalytic oxidation of ammonia at 800°C in presence of platinum catalyst produces nitrogen oxide. Conversion of NH3 to NO is about ______________ percent?

   A. 38
   B. 68
   C. 82
   D. 98

3. Catalyst used in the oxidation of ammonia is ________________?

   A. Platinum-beryllium
   B. Platinum-rhodium
   C. Cobalt-molybdenum
   D. Platinum-molybdenum

4. Catalytic ammonia synthesis reaction as in Haber’s process is_________________?

   A. Endothermic
   B. Exothermic
   C. Irreversible
   D. None of these

5. Which of the following is not a commercially used feed-stock for the production of ammonia synthesis gas ?

   A. Water
   B. Naphtha
   C. Tar
   D. Coal/coke oven gas

6. Lower temperature and large excess of ammonia in urea melt__________________?

   A. Increases biuret formation
   B. Decreases biuret formation
   C. Is undesirable
   D. Does not effect biuret formation

7. Ammonia synthesis reaction is______________________?

   A. Exothermic
   B. Endothermic
   C. Autocatalytic
   D. None of these

8. Neutralisation of nitric acid with ammonia to produce ammonium nitrate is a/an _______________________ reaction?

   A. Catalytic
   B. Endothermic
   C. Exothermic
   D. Autocatalytic

9. In an ammonia plant, the purge off is essential to___________________?

   A. Maintain inert gas concentration within a limit
   B. Remove excess poisonous gases
   C. Maintain H2 : N2 ratio at 3 :1
   D. Remove uncondensed ammonia vapour

10. Ammonia synthesis gas is produced from fuel oil by _________________?

    A. Steam reforming
    B. Hydro-cracking
    C. Partial oxidation
    D. Hydrogenation