Heating of coke, sand & phosphate rock in an electric furnace is done for the manufacture of_________________?
Correct answer: C. Phosphorous
- A. Phosphoric acid
- B. Superphosphate
- C. Phosphorous
- D. Triple superphosphate
Explanation
Coke reduces the phosphate compounds in phosphate rock, while sand helps remove calcium as slag; the product is elemental phosphorus. This electric-furnace route is therefore used for phosphorus, not superphosphate fertilizers.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? support@testustad.com
Practise Chemical Process Principles
2,710 free Chemical Process Principles MCQs from Chemical Engineering, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Chemical Engineering questions like this
Chemical Engineering is on this paper prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for it.
More Chemical Process Principles questions
Lower temperature and large excess of ammonia in urea melt__________________?
Bio-fertilisers are cheaper, renewable and pollution free. They improve the _____________ of the soil?
Montecatini process is used for the manufacture of____________________?
The concentration (weight %) of nitric acid produced by the oxidation of ammonia and absorption of nitrogen oxides with water is about ____________ percent?
Yield of urea can be increased with excess ammonia and higher pressure & temperature, but because of ____________ this is normally not done?
Which of the following is not a measure component necessarily to be present in fertilisers ?