Explore topic-wise MCQs in Chemical Industry.

This section includes 6 Mcqs, each offering curated multiple-choice questions to sharpen your Chemical Industry knowledge and support exam preparation. Choose a topic below to get started.

1.

At which stage ammonia is added if ammonium phosphate is required in manufacture of triple super phosphate?

A. Continuous belt reactor
B. Rotary dryer
C. Rotary granulator
D. Feeder
Answer» D. Feeder
Discussion
2.

What is the reaction time of triple super phosphate formation?

A. 15-20 min
B. 5-6 min
C. 5-15 min
D. 20-30 min
Answer» B. 5-6 min
Discussion
3.

What is the chemical formula of triple super phosphate?

A. (Ca<sub>3</sub> (PO<sub>4</sub>)<sub>2</sub>)<sub>3</sub> CaF<sub>2</sub>
B. CaH<sub>4</sub> (PO<sub>4</sub>)<sub>2</sub>
C. Ca<sub>3</sub> (PO<sub>4</sub>)<sub>2</sub>
D. CaH<sub>4</sub> (PO<sub>4</sub>)<sub>2</sub> CaSO<sub>4</sub>
Answer» C. Ca<sub>3</sub> (PO<sub>4</sub>)<sub>2</sub>
Discussion
4.

What is the chemical formula of super phosphate?

A. CaH<sub>4</sub> (PO<sub>4</sub>)<sub>2</sub>
B. Ca<sub>3</sub> (PO<sub>4</sub>)<sub>2</sub>
C. CaH<sub>4</sub> (PO<sub>4</sub>)<sub>2</sub> CaSO<sub>4</sub>
D. (Ca<sub>3</sub> (PO<sub>4</sub>)<sub>2</sub>)<sub>3</sub> CaF<sub>2</sub>
Answer» D. (Ca<sub>3</sub> (PO<sub>4</sub>)<sub>2</sub>)<sub>3</sub> CaF<sub>2</sub>
Discussion
5.

What is the percentage of P2O5 present in triple super phosphate?

A. 16-20%
B. 42-50%
C. 30-35%
D. 62-70%
Answer» C. 30-35%
Discussion
6.

Super phosphate grade of calcium phosphate is formed by reacting with which of the following acid?

A. H<sub>2</sub>SO<sub>4</sub>
B. HCl
C. H<sub>3</sub>PO<sub>4</sub>
D. HNO<sub>3</sub>
Answer» B. HCl
Discussion