Catalyst used in the oxidation of ammonia is ________________?

Related Mcqs:

1. Use of catalyst is a must in the ammonia manufacture, because the reaction is reversible as well as the heat of dissociation of N2 & H2 is high. The presence of promoter along with the catalyst helps in ______________ of the catalyst ?

   A. Stabilisation
   B. Increasing the effectiveness
   C. Improving the strength & heat resistance
   D. All A, B & C

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. 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

4. Oxidation of ammonia is________________?

   A. Exothermic
   B. Endothermic
   C. Non-catalytic
   D. Autocatalytic

5. Catalyst used in ammonia synthesis uses ____________ as a promoter?

   A. Pt
   B. K2O
   C. Al2O3
   D. Ni

6. Iron is not used alone as a catalyst in ammonia synthesis, because___________________?

   A. Its activity declines rapidly, if heated to above 520°C
   B. It decomposes ammonia
   C. It gets oxidised above 500°C
   D. None of these

7. Which is a catalyst promoter used in catalytic ammonia synthesis reaction ?

   A. Al2O3
   B. Cr2O3
   C. K2O
   D. MnO

8. Catalyst used in Haber’s process for ammonia production is_________________?

   A. Reduced iron oxide
   B. Nickel
   C. Vanadium pentoxide
   D. Silica gel

9. In _____________ converter for ammonia synthesis, the catalyst is arranged in the form of a single continuous bed?

   A. Fauser-Montecatini
   B. Claude
   C. Uhde
   D. Kellogg

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

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