71. Reaction of phosphate rock with 98% H2SO4 produces
72. Reaction of calcium fluorapatite with sulphuric acid produces
73. 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
74. Urea is a __________ fertiliser.
75. Pick out the wrong statement.
76. Which of the following fertilisers is needed for promoting the development of leaves and stems during early stages of plant growth?
77. __________ is the undesirable by-product produced in the manufacture of urea.
78. In the manufacture of H3PO4 (ortho); strong H2SO4 leaching wet process as compared to electric furnace process
79. NPK fertiliser is a __________ fertiliser.
80. Raw materials for urea production are
Read More Section(Fertiliser Technology)
Each Section contains maximum 100 MCQs question on Fertiliser Technology. To get more questions visit other sections.