Which one of the following set of raw material is most suitable for manufacture of urea ?

Related Mcqs:

1. Which one of the following raw material is not present in the cement ?

   A. lime stone
   B. gypsum
   C. KNO3
   D. iron oxide

2. The composition of mixture of clay and lime stone in the raw for cement material is __________________?

   A. 75% lime stone and 25% clay
   B. 25% lime stone and 75% clay
   C. 15% lime stone and 55% clay
   D. 55% lime stone and 15% clay

3. Which one of the following statement is correct for urea ?

   A. it is a synthetic fertilizer
   B. it is a natural fertilizer
   C. it provides micronutrients to the plants
   D. it is an inorganic water soluble compound

4. Addition of urea to the soil is ____________ reaction?

   A. endothermic
   B. exothermic
   C. both a and b
   D. no heat energy is involved

5. The cooling of molten urea by air in the tower is called______________________?

   A. prilling
   B. evaporation
   C. condensation
   D. crystallization

6. The percentage of nitrogen in urea is________________?

   A. 36%
   B. 46%
   C. 56%
   D. 66%

7. The gas used in manufacturing of urea fertilizer__________________?

   A. C2H6
   B. C2H4
   C. C2H2
   D. CH4

8. Urea as a fertilizer contains:____________?

   A. 57% N
   B. 73% N
   C. 46% N
   D. 53% N

   Submitted by: TAHREEM RAJPOOT

9. Which of the following is the most suitable catalyst for ammonia synthesis ?

   A. Pt
   B. ZnO + Cr2O3
   C. Fe in fused mixture of Al2O3 + SiQ2 + MgO
   D. All of the above

10. Which sequence of steps is correct for the manufacture of cement ?

    A. crushing heating mixing grinding
    B. crushing mixing heating grinding and mixing
    C. crushing grinding mixing heating
    D. mixing heating grinding crushing