Sodium tri poly phosphate (STPP) is manufactured by reaction of phosphoric acid with sodium___________________?
Correct answer: A. Carbonate
- A. Carbonate
- B. Phosphate
- C. Bicarbonate
- D. Silicate
Explanation
Sodium carbonate reacts with phosphoric acid to form sodium phosphate salts, with carbon dioxide and water as by-products. The resulting phosphate mixture is further processed to produce sodium tripolyphosphate.
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
Which of the following is the costliest method for commercial production of hydrogen for ammonia synthesis ?
Urea is formed only____________________?
A mixture of phosphate rock ______________ is heated in an electric furnace to produce phosphorous?
Montecatini process is used for the manufacture of____________________?
Bio-fertilisers are cheaper, renewable and pollution free. They improve the _____________ of the soil?
Lower temperature and large excess of ammonia in urea melt__________________?