The fertilizers which provide single nutrient from NPK are called ___________ fertilizer?
A. straight B. compound C. both a and b D. none of the above
Chemistry MCQs
Addition of urea to the soil is ____________ reaction?
A. endothermic B. exothermic C. both a and b D. no heat energy is involved
The cooling of molten urea by air in the tower is called______________________?
A. prilling B. evaporation C. condensation D. crystallization
DAP (Diammonium hydrogen phosphate) contains ______________ plant nutrients?
A. 60% B. 65% C. 70% D. 75%
Calcarious material includes_________________?
A. lime stone B. marble C. chalk D. all of the above
Which of the following processes is used for the synthesis of cement ?
A. dry process B. wet process C. both D. none
How many zones through which the charge passes in a rotary kiln ?
A. 4 B. 3 C. 2 D. 5
Which one of the following set of raw material is most suitable for manufacture of urea ?
A. CH4 N2 and CO2 B. H2 N2 and CO C. H2 CO2 and H2O D. H2O N2 and H2
The percentage of nitrogen in urea is________________?
A. 36% B. 46% C. 56% D. 66%
Which one of the following fertilizers provides the nitrogen and phosphorus to the plant ?
A. urea B. calcium superphosphate C. diammonium phosphate D. potassium nitrate