Chemical Engineering — Test 173
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Question 1
Chemical formula of meta-phosphoric acid is ___________________?
Question 2
Gas based fertiliser plants use_________________?
Question 3
Main constituent of phosphate rock is_____________________?
Question 4
Low grade coal is ______________ to produce ammonia synthesis gas?
Question 5
Liquid ammonia and 60% nitric acid reaction (which produces ammonium nitrate) is___________________?
Question 6
Catalyst used in steam reforming of naphtha is ___________________?
Question 7
Heating a mixture of phosphate rock, coke and sand in an electric furnace produces___________________?
Question 8
Which of the following fertilisers contains the least percentage of nitrogen ?
Question 9
pH value of soil is maintained at ______________ by the addition of fertiliser for optimum growth and health of the plant?
Question 10
Though liquid ammonia itself is a fertiliser (with 82% nitrogen content) yet it is commonly not used as such in a tropical country like India, because it___________________?