Fertiliser Technology 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 Biuret formation Low bulk density product Non-spherical prills Substantially wet non-flowing and sticky product Biuret formation Low bulk density product Non-spherical prills Substantially wet non-flowing and sticky product ANSWER DOWNLOAD EXAMIANS APP
Fertiliser Technology Iron is not used alone as a catalyst in ammonia synthesis, because It decomposes ammonia None of these Its activity declines rapidly, if heated to above 520°C It gets oxidised above 500°C It decomposes ammonia None of these Its activity declines rapidly, if heated to above 520°C It gets oxidised above 500°C ANSWER DOWNLOAD EXAMIANS APP
Fertiliser Technology Which of the following is the costliest source of hydrogen needed for ammonia manufacture under Indian condition? Electrolysis of water Cryogenic removal of H₂ from coke oven gas Natural gas cracking Steam reforming of naphtha Electrolysis of water Cryogenic removal of H₂ from coke oven gas Natural gas cracking Steam reforming of naphtha ANSWER DOWNLOAD EXAMIANS APP
Fertiliser Technology Steam reforming of naphtha produces ammonia synthesis gas. This is a/an __________ process. Non-catalytic Endothermic Autocatalytic Exothermic Non-catalytic Endothermic Autocatalytic Exothermic ANSWER DOWNLOAD EXAMIANS APP
Fertiliser Technology Conversion of yellow phosphorous to red phosphorous is done by heating it in covered retorts at __________ °C in absence of air. 800-900 50-80 1000-1200 250-400 800-900 50-80 1000-1200 250-400 ANSWER DOWNLOAD EXAMIANS APP
Fertiliser Technology Nitrolime is A mixture of nitric acid and lime Calcium nitrate A mixture of ammonium nitrate and calcium nitrate Calcium ammonium nitrate A mixture of nitric acid and lime Calcium nitrate A mixture of ammonium nitrate and calcium nitrate Calcium ammonium nitrate ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS