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Doctors Medicines MCQs Q&A

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Dehydration of ammonium carbamate to yield urea is a/an __________ reaction.
In a village 50% of the villagers produce rice, 40% of the villagers produce apples and 50% of the villagers produce vegetables, 20% of the villagers produce rice and apples both, 25% of the villagers produce apples and vegetables both, 20% of the villagers produce rice and vegetables both and 10% of the villagers produce all three. Find the percentage of villagers who do not produce anything.
Dehydration of ammonium carbamate produces
Formation of ammonium carbamate by reaction of NH₃ with CO₂ is a/an __________ reaction.
Formation of ammonium carbamate by reaction of NH3 with CO2 is a/an __________ reaction.
With increases in pressure, the conversion of ammonium carbamate into urea
During conversion of ammonium carbamate into urea, presence of large excess of water
N2 content in a urea sample was found to be only 42%. What is the actual urea content of the sample? (molecular weight of urea = 60)
For the reaction, A = X + Y, the respective concentrations are CA, CX and CY. The forward reaction rate constant is kf and the backward reaction rate constant is kb. Choose the correct statement from the following:
P. At equilibrium, kf CA > kB CxCy
Q. If the reaction is irreversible than, kb CXCY = 0
R. The backward reaction rate will essentially be first order, if the forward reaction rate is first order.
S. Activation energy for the first order forward reaction will be independent of temperature.
Ammonium carbamate decomposition results in which of the mentioned?