NH₂.CO.NH₂
NH₃.COO.NH₃
NH₂CONHCONH₂
NH₄COONH₂
✅ The correct answer is option C.
Fertilizer Technology MCQs
Leaching of phosphate rock by strong __________ acid produces phosphoric acid.
Sulphuric
Hydrochloric
Either A or B
Neither A nor B
✅ The correct answer is option C.
Which of the following is not a measure component necessarily to be present in fertilisers?
Nitrogen
Potassium
Phosphorous
Sulphur
✅ The correct answer is option D.
Triple superphosphate is chemically represented as
CaF₂.3Ca₃(PO₄)₂
3Ca₃(PO₄)₂
Ca(PO₃)₂
Ca(H₂PO₄)₂
✅ The correct answer is option A.
Color of nitric acid is light yellow due to the presence of
NO
NO₂
N₂H₅
NH₃
✅ The correct answer is option B.
Coal based fertiliser plants at Ramagundam (Andhra Pradesh) and Talchar (Orissa)
Use coal for heating purpose
Gasify coal to get hydrogen from coal gas
Use coal as filler in fertiliser
Use coal as conditioner in fertiliser
✅ The correct answer is option B.
Conversion of yellow phosphorous to red phosphorous is done by heating it in covered retorts at __________ °C in absence of air.
50-80
250-400
1000-1200
800-900
✅ The correct answer is option B.
In an ammonia plant, the purge off is essential to
Maintain inert gas concentration within a limit
Remove excess poisonous gases
Maintain H₂ : N₂ ratio at 3 :1
Remove uncondensed ammonia vapour
✅ The correct answer is option C.
Ammonium nitrate (is mixed with limestone) is not used as fertiliser as such, because
It is hygroscopic and explosive in nature
It is highly acidic in nature
It is a liquid at room temperature
Its nitrogen content is very less
✅ The correct answer is option A.
Dehydration of ammonium carbamate to yield urea is a/an __________ reaction.
Exothermic
Endothermic
Autocatalytic
Catalytic
✅ The correct answer is option B.