Past Papers Basic Chemical Technology

Guess Paper 1: Basic Chemical Technology Past Papers

University Name – Confidential

NOTE: Q.1 is compulsory, attempt any four questions from the remaining. All questions carry equal marks. Phones and other Electronic Gadgets are not allowed.

Time Allowed: 3 hours

Examination:   Final, Fall – 2020

Total Marks:    70, Passing Marks (35)

Q1. Draw and the flow sheet of carbon dioxide manufacturing only. (10)
Q2. Draw and explain the flow sheet of the cement industry by dry process. (15)
Q3. Draw and explain the manufacturing process of hydrogen gas. (15)
Q4. Discuss the flow sheet of the cement industry (wet process). (15)
Q5. Draw and explain the flow sheet of the caustic soda industry. (15)
Q6. What is polymerization? Explain types of polymerization reactions. (15)
Q7. Draw and explain the flow sheet of the plastic industry. (15)
Q8. What are explosives? Explain the types of explosives in detail. (15)

Guess Paper 2: Basic Chemical Technology

University Name – Confidential

NOTE: Q.1 is compulsory, attempt any four questions from the remaining. All questions carry equal marks. Phones and other Electronic Gadgets are not allowed.

Time Allowed: 3 hours

Examination:   Final, Fall – 2020

Total Marks:    70, Passing Marks (35)

Q.1 Fill in the blanks: (10)

1. _________hardness of water can be removed by boiling.
2. The chemical formula of Caustic Soda is ………….
3. PVC is an abbreviation of _________.
4. _________ is known as baking soda.
5. The contact process is used for the production of ………
6. Hydrazine (N2H4) is mainly used as a _________
7. Gypsum is added to cement to _________it settling time.
8. ……….. Is known as washing soda.
9. ………… is the formula for TNT.
10. ………… is the formula of urea fertilizer.

Q.2 Draw a neat flow sheet of any Fertilizer. (15)

Q.3 Draw flow sheet and explain the manufacturing process of caustic soda. (15)

Q.4 Draw only the flow sheet of sodium carbonate. (15)

Q.5 Explain the processes that occur in Kiln of cement industry along with chemical reactions. (15)

Q.6 Draw a neat flow sheet of carbon dioxide manufacturing only. (15)

Q.7 Explain manufacturing process of Oxygen gas along with flow sheet. (15)

Q.8 Write a note on any two of the following: (15)
a) Addition Polymerization
b) Condensation Polymerization
c) Temporary Hardness of Water.
d) Permanent hardness of the water.

Guess Paper 3: Basic Chemical Technology

University Name – Confidential

NOTE: Q.1 is compulsory, attempt any four questions from the remaining. All questions carry equal marks. Phones and other Electronic Gadgets are not allowed.

Time Allowed: 3 hours

Examination:   Final, Fall – 2020

Total Marks:    70, Passing Marks (35)

Q1: Briefly explain the following. Each part carries 2 marks.
a) Calcination
b) Water conditioning
c) Sedimentation
d) Polyester Fiber
e) Thermoplastics
f) Polymerization
g) Osmosis

Q.2: What do you mean by refractories? Discuss the types and uses of refractories?
Q.3: Draw and explain the detailed flow sheet for cement manufacturing by dry process.
Q4: What are the different types of rubbers, its importance, and different uses?
Q5: Explain the manufacturing process of nitro cellulose with the help of a flow sheet.
Q6: Write a detailed note on the physical and chemical properties of sodium carbonate and its uses.
Q7: Draw and explain the detailed flow sheet for the manufacturing of urea (fertilizer).
Q8: Write short notes on any two of the following:
a) Properties of rubber
b) Removal of the hardness of water
c) Reverse Osmosis

Prof. Fazal Rehman Shamil