Related Questions

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
Dehydration of ammonium carbamate (to produce urea) is a/an __________ reaction.
A Reversible
B Catalytic
C Exothermic
D Endothermic
Dehydration of ammonium carbamate to yield urea is a/an __________ reaction.
A Exothermic
B Endothermic
C Autocatalytic
D Catalytic
Dehydration of ammonium carbamate produces
A Urea
B Biuret
C Ammonia water
D None of these
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
Lower temperature and large excess of ammonia in urea melt
A Increases biuret formation
B Decreases biuret formation
C Is undersirable
D Does not effect biuret formation
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
2 large and 1 small pumps can fill a water tank in 4 hours. 1 large and 3 small pumps can also fill the same water tank in 4 hours . How many hours will it take for 3 large 4 small pumps to fill the tank?
A 2 hours
B 2.5 hours
C 3 hours
D 3.5 hours
2 large and 1 small pumps can fill a water tank in 4 hours. One large and 3 small pumps can also fill the same water tank in 4 hours. how many hours will it take for 3 large and 4 small pumps to fill the tank?
A 2 hours
B 2.5 hours
C 3 hours
D 3.5 hours
Recently in which of the following cities, a large amount of ammonium nitrate exploded, causing server damage and death?
A Benghazi
B Tripoli
C Beirut
D Amman

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