A. Exothermic
B. Endothermic
C. Autocatalytic
D. Catalytic
Related Mcqs:
- Dehydration of ammonium carbamate (to produce urea) is a/an _____________ reaction?
A. Reversible
B. Catalytic
C. Exothermic
D. Endothermic - Dehydration of ammonium carbamate produces__________________?
A. Urea
B. Biuret
C. Ammonia water
D. None of these - During conversion of ammonium carbamate into urea, presence of large excess of water______________?
A. Increases the yield of urea
B. Adversely affects the yield of urea
C. Reduces the evaporator load by diluting the urea solution
D. Does not affect the yield of urea - Formation of ammonium carbamate by reaction of NH3 with CO2 is a/an ______________ reaction?
A. Catalytic
B. Exothermic
C. Endothermic
D. Reversible - With increases in pressure, the conversion of Ammonium carbamate into urea___________________?
A. Increases
B. Decreases
C. Remains unaltered
D. Can either increase or decrease depends on biuret content - Urea is a better fertilizer than ammonium sulphate, because__________________?
A. It is cheaper
B. Nitrogen content is higher
C. It is not poisonous
D. It is easy to manufacture - Prilling of urea should be accomplished (in a sprayer) just above the melting point of urea with minimum of retention time, otherwise it will result in__________________?
A. Low bulk density product
B. Biuret formation
C. Non-spherical prills
D. Substantially wet non-flowing and sticky product - Yield of urea can be increased with excess ammonia and higher pressure & temperature, but because of ____________ this is normally not done?
A. Increased biuret formation
B. High corrosion rate
C. Increased cost of equipment
D. All A., B. & C. - Vapor phase reaction of ammonia & nitric acid to produce ammonium nitrate is termed as the _______________ process?
A. Haber’s
B. Stengel
C. Le-chatelier’s
D. Du-pont’s - Liquid ammonia and 60% nitric acid reaction (which produces ammonium nitrate) is___________________?
A. Exothermic
B. Endothermic
C. Autocatalytic
D. None of these
