NPK fertiliser is a _______________ fertiliser?
NPK fertiliser is a _______________ fertiliser?
A. Complex
B. Mixed
C. Nitrogenous
D. Phosphatic
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Reaction of phosphate rock with 98% H2SO4 produces ______________________?
Reaction of phosphate rock with 98% H2SO4 produces ______________________?A. Ortho-phosphoric acid
B. Superphosphate
C. White phosphorous
D. None of theseH4P2O7 is the chemical formula of _____________ phosphoric acid?
H4P2O7 is the chemical formula of _____________ phosphoric acid?A. Pyro
B. Ortho
C. Meta
D. None of theseElectric process as compared to wet process (for the manufacture of phosphoric acid) ?
Electric process as compared to wet process (for the manufacture of phosphoric acid) ?A. Can use only high grade phosphate rock
B. Is used less frequently
C. Produces a valuable by-product called gypsum
D. Is weak acid processNitrolime is___________________?
Nitrolime is___________________?A. Calcium nitrate
B. Calcium ammonium nitrate
C. A mixture of nitric acid and lime
D. A mixture of ammonium nitrate and calcium nitrateIn natural gas, the C/H ratio (by weight) varies in the range of_________________?
In natural gas, the C/H ratio (by weight) varies in the range of_________________?A. 3-4
B. 8-10
C. 15-17
D. 20-25Naphtha in a fertiliser plant is used as a source of___________________?
Naphtha in a fertiliser plant is used as a source of___________________?A. Fuel
B. H2
C. N2
D. O2