Chemical Engineering — Test 172
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Question 1
Though kinetics of ammonia synthesis dictates the use of low temperature for high equilibrium conversion, yet it is kept moderately high (550°C), because at low temperature___________________?
Question 2
Fertiliser value of a nitrogenous fertiliser is expressed in terms of its ______________ content?
Question 3
Base suspension fertiliser essentially contains___________________?
Question 4
The main constituent of rock phosphate is _____________________?
Question 5
Potassic fertilisers do not promote the development of ______________________?
Question 6
Heating of ortho-phosphoric acid to 250°C produces___________________?
Question 7
Chemical formula of biuret is_________________?
Question 8
Ammonia synthesis gas is produced from natural gas by___________________?
Question 9
In an ammonia plant, the purge off is essential to___________________?
Question 10
Superphosphate is manufactured by reacting phosphate rock with_____________________?