Practice high-yield Chemical Engineering MCQs on Chemical Process — Part 2 with worked academic solutions for FPSC, PPSC, PAEC, OGDCL.
Questions
40
Difficulty Level
Exam-Level
Target Exams
FPSC, PPSC, PAEC...
Estimated Time
48 mins
Exam-Level FPSC PPSC PAEC OGDCL
Verified for Commission Syllabus • Oct 14, 2026
40
Verified Practice Questions
Interactive test mode with detailed academic worked solutions
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🎉 Set complete! All 40 questions answered.
Question 1 of 40
★ FPSC
★ PPSC
★ FPSC
★ PPSC
Carbon content of pitch (residue of coal tar distillation) is around __________ percent.
Correct Answer: Option D — 94
Detailed Academic Explanation:
94 is the correct answer to “Carbon content of pitch (residue of coal tar distillation) is around __________ percent.”. This question is standard in competitive examination syllabi for Chemical Process.
💡Key Conceptual Anchor:Chemical Process
Question 2 of 40
★ FPSC
★ PPSC
★ FPSC
★ PPSC
Alum is commercially produced from
Correct Answer: Option D — Bauxite
Detailed Academic Explanation:
Bauxite is the correct answer to “Alum is commercially produced from”. This question is standard in competitive examination syllabi for Chemical Process.
💡Key Conceptual Anchor:Chemical Process
Question 3 of 40
★ FPSC
★ PPSC
★ FPSC
★ PPSC
Which of the following is not an abrasive material ?
Correct Answer: Option A — Bakelite
Detailed Academic Explanation:
Bakelite is the correct answer to “Which of the following is not an abrasive material”. This question is standard in competitive examination syllabi for Chemical Process.
💡Key Conceptual Anchor:Chemical Process
Question 4 of 40
★ FPSC
★ PPSC
★ FPSC
★ PPSC
Ethanol amine is produced using ammonia and
Correct Answer: Option B — Ethylene oxide
Detailed Academic Explanation:
Ethylene oxide is the correct answer to “Ethanol amine is produced using ammonia and”. This question is standard in competitive examination syllabi for Chemical Process.
💡Key Conceptual Anchor:Chemical Process
Question 5 of 40
★ FPSC
★ PPSC
★ FPSC
★ PPSC
Hydrocynic acid (HCN) is used as an insecticide for
Correct Answer: Option D — Citrus fruits
Detailed Academic Explanation:
Citrus fruits is the correct answer to “Hydrocynic acid (HCN) is used as an insecticide for”. This question is standard in competitive examination syllabi for Chemical Process.
💡Key Conceptual Anchor:Chemical Process
Question 6 of 40
★ FPSC
★ PPSC
★ FPSC
★ PPSC
Sodium bisulphite is used for __________ water.
Correct Answer: Option C — Both A & B
Detailed Academic Explanation:
Both A & B is the correct answer to “Sodium bisulphite is used for __________ water.”. This question is standard in competitive examination syllabi for Chemical Process.
💡Key Conceptual Anchor:Chemical Process
Question 7 of 40
★ FPSC
★ PPSC
★ FPSC
★ PPSC
Zeolite is used in the
Correct Answer: Option A — Water treatment
Detailed Academic Explanation:
Water treatment is the correct answer to “Zeolite is used in the”. This question is standard in competitive examination syllabi for Chemical Process.
💡Key Conceptual Anchor:Chemical Process
Question 8 of 40
★ FPSC
★ PPSC
★ FPSC
★ PPSC
Chloral is used in the manufacture of
Correct Answer: Option A — DDT
Detailed Academic Explanation:
DDT is the correct answer to “Chloral is used in the manufacture of”. This question is standard in competitive examination syllabi for Chemical Process.
💡Key Conceptual Anchor:Chemical Process
Question 9 of 40
★ FPSC
★ PPSC
★ FPSC
★ PPSC
Mannheim furnace is used in the manufacture of
Correct Answer: Option A — Hydrochloric acid
Detailed Academic Explanation:
Hydrochloric acid is the correct answer to “Mannheim furnace is used in the manufacture of”. This question is standard in competitive examination syllabi for Chemical Process.
💡Key Conceptual Anchor:Chemical Process
Question 10 of 40
★ FPSC
★ PPSC
★ FPSC
★ PPSC
Fourdrinier machine is used in the manufacture of
Correct Answer: Option B — Paper
Detailed Academic Explanation:
Paper is the correct answer to “Fourdrinier machine is used in the manufacture of”. This question is standard in competitive examination syllabi for Chemical Process.
💡Key Conceptual Anchor:Chemical Process
Question 11 of 40
★ FPSC
★ PPSC
★ FPSC
★ PPSC
Yeast is used in the manufacture of
Correct Answer: Option C — Wine
Detailed Academic Explanation:
Wine is the correct answer to “Yeast is used in the manufacture of”. This question is standard in competitive examination syllabi for Chemical Process.
💡Key Conceptual Anchor:Chemical Process
Question 12 of 40
★ FPSC
★ PPSC
★ FPSC
★ PPSC
Bromine is used in the preparation of
Correct Answer: Option D — All of the above
Detailed Academic Explanation:
All of the above is the correct answer to “Bromine is used in the preparation of”. This question is standard in competitive examination syllabi for Chemical Process.
💡Key Conceptual Anchor:Chemical Process
Question 13 of 40
★ FPSC
★ PPSC
★ FPSC
★ PPSC
Percentage of uranium in carnotite ore found in Jadugoda (Jharkhand) is about
Correct Answer: Option A — 0.1 to 0.5
Detailed Academic Explanation:
0.1 to 0.5 is the correct answer to “Percentage of uranium in carnotite ore found in Jadugoda (Jharkhand) is about”. This question is standard in competitive examination syllabi for Chemical Process.
💡Key Conceptual Anchor:Chemical Process
Question 14 of 40
★ FPSC
★ PPSC
★ FPSC
★ PPSC
Laboratory glass wares which reacts with hydroflouric acid, are made of the __________ glass.
Correct Answer: Option B — Borosilicate
Detailed Academic Explanation:
Borosilicate is the correct answer to “Laboratory glass wares which reacts with hydroflouric acid, are made of the __________ glass.”. This question is standard in competitive examination syllabi for Chemical Process.
💡Key Conceptual Anchor:Chemical Process
Question 15 of 40
★ FPSC
★ PPSC
★ FPSC
★ PPSC
Which of the following processes does not produce Cl 2 as a co-product during the manufacture of caustic soda?
Correct Answer: Option C — Lime-soda process
Detailed Academic Explanation:
Lime-soda process is the correct answer to “Which of the following processes does not produce Cl 2 as a co-product during the manufacture of caustic soda”. This question is standard in competitive examination syllabi for Chemical Process.
💡Key Conceptual Anchor:Chemical Process
Question 16 of 40
★ FPSC
★ PPSC
★ FPSC
★ PPSC
__________ glass is used for the manufacture of optical glass.
Correct Answer: Option C — Flint
Detailed Academic Explanation:
Flint is the correct answer to “__________ glass is used for the manufacture of optical glass.”. This question is standard in competitive examination syllabi for Chemical Process.
💡Key Conceptual Anchor:Chemical Process
Question 17 of 40
★ FPSC
★ PPSC
★ FPSC
★ PPSC
Caprolactum (a raw material for nylon-6 manufacture) is produced from
Correct Answer: Option C — Benzene
Detailed Academic Explanation:
Benzene is the correct answer to “Caprolactum (a raw material for nylon-6 manufacture) is produced from”. This question is standard in competitive examination syllabi for Chemical Process.
💡Key Conceptual Anchor:Chemical Process
Question 18 of 40
★ FPSC
★ PPSC
★ FPSC
★ PPSC
In the manufacture of viscose rayon, the raw material used industrially is
Correct Answer: Option D — Fine teak wood
Detailed Academic Explanation:
Fine teak wood is the correct answer to “In the manufacture of viscose rayon, the raw material used industrially is”. This question is standard in competitive examination syllabi for Chemical Process.
💡Key Conceptual Anchor:Chemical Process
Question 19 of 40
★ FPSC
★ PPSC
★ FPSC
★ PPSC
Bromine content in sea water may be around __________ ppm.
Correct Answer: Option A — 70
Detailed Academic Explanation:
70 is the correct answer to “Bromine content in sea water may be around __________ ppm.”. This question is standard in competitive examination syllabi for Chemical Process.
💡Key Conceptual Anchor:Chemical Process
Question 20 of 40
★ FPSC
★ PPSC
★ FPSC
★ PPSC
Nickel is not used as a catalyst in the
Correct Answer: Option D — Ostwald's process of HNO3 manufacture
Detailed Academic Explanation:
Ostwald's process of HNO3 manufacture is the correct answer to “Nickel is not used as a catalyst in the”. This question is standard in competitive examination syllabi for Chemical Process.
💡Key Conceptual Anchor:Chemical Process
Question 21 of 40
★ FPSC
★ PPSC
★ FPSC
★ PPSC
Gelatine which is a nitrogenous organic protein is obtained by the hydrolysis of
Correct Answer: Option A — Callagen
Detailed Academic Explanation:
Callagen is the correct answer to “Gelatine which is a nitrogenous organic protein is obtained by the hydrolysis of”. This question is standard in competitive examination syllabi for Chemical Process.
💡Key Conceptual Anchor:Chemical Process
Question 22 of 40
★ FPSC
★ PPSC
★ FPSC
★ PPSC
Contact process of sulphuric acid manufacture
Correct Answer: Option A — Yields acid of higher concentration than chamber process
Detailed Academic Explanation:
Yields acid of higher concentration than chamber process is the correct answer to “Contact process of sulphuric acid manufacture”. This question is standard in competitive examination syllabi for Chemical Process.
💡Key Conceptual Anchor:Chemical Process
Question 23 of 40
★ FPSC
★ PPSC
★ FPSC
★ PPSC
Catalytic oxidation of toluene produces
Correct Answer: Option B — Phenol
Detailed Academic Explanation:
Phenol is the correct answer to “Catalytic oxidation of toluene produces”. This question is standard in competitive examination syllabi for Chemical Process.
💡Key Conceptual Anchor:Chemical Process
Question 24 of 40
★ FPSC
★ PPSC
★ FPSC
★ PPSC
Which of the following processes can remove both temporary as well as permanent hardness of water?
Correct Answer: Option C — Distillation
Detailed Academic Explanation:
Distillation is the correct answer to “Which of the following processes can remove both temporary as well as permanent hardness of water”. This question is standard in competitive examination syllabi for Chemical Process.
💡Key Conceptual Anchor:Chemical Process
Question 25 of 40
★ FPSC
★ PPSC
★ FPSC
★ PPSC
Which of the following is not responsible for causing permanent hardness of water?
Correct Answer: Option A — Ca(HCO3)2
Detailed Academic Explanation:
Ca(HCO3)2 is the correct answer to “Which of the following is not responsible for causing permanent hardness of water”. This question is standard in competitive examination syllabi for Chemical Process.
💡Key Conceptual Anchor:Chemical Process
Question 26 of 40
★ FPSC
★ PPSC
★ FPSC
★ PPSC
Function of sodium thiosulphate (hypo) in development of photographic film/plate is to
Correct Answer: Option D — Remove unexposed silver halide
Detailed Academic Explanation:
Remove unexposed silver halide is the correct answer to “Function of sodium thiosulphate (hypo) in development of photographic film/plate is to”. This question is standard in competitive examination syllabi for Chemical Process.
💡Key Conceptual Anchor:Chemical Process
Question 27 of 40
★ FPSC
★ PPSC
★ FPSC
★ PPSC
Liquor poisoning generally occurs due to the presence of __________ in it.
Correct Answer: Option C — Methyl alcohol
Detailed Academic Explanation:
Methyl alcohol is the correct answer to “Liquor poisoning generally occurs due to the presence of __________ in it.”. This question is standard in competitive examination syllabi for Chemical Process.
💡Key Conceptual Anchor:Chemical Process
Question 28 of 40
★ FPSC
★ PPSC
★ FPSC
★ PPSC
Sulphur removal by heating of pyrite ore in presence of air is called its
Correct Answer: Option B — Roasting
Detailed Academic Explanation:
Roasting is the correct answer to “Sulphur removal by heating of pyrite ore in presence of air is called its”. This question is standard in competitive examination syllabi for Chemical Process.
💡Key Conceptual Anchor:Chemical Process
Question 29 of 40
★ FPSC
★ PPSC
★ FPSC
★ PPSC
The metallic aluminium is obtained from pure alumina in the presence of fused cryolite by
Correct Answer: Option B — Electrolytic reduction
Detailed Academic Explanation:
Electrolytic reduction is the correct answer to “The metallic aluminium is obtained from pure alumina in the presence of fused cryolite by”. This question is standard in competitive examination syllabi for Chemical Process.
💡Key Conceptual Anchor:Chemical Process
Question 30 of 40
★ FPSC
★ PPSC
★ FPSC
★ PPSC
Reaction of calcium carbide with water produces a gas, which is used
Correct Answer: Option C — Both A & B
Detailed Academic Explanation:
Both A & B is the correct answer to “Reaction of calcium carbide with water produces a gas, which is used”. This question is standard in competitive examination syllabi for Chemical Process.
💡Key Conceptual Anchor:Chemical Process
Question 31 of 40
★ FPSC
★ PPSC
★ FPSC
★ PPSC
Fusion of bauxite and __________ produces high alumina cement.
Correct Answer: Option B — Limestone
Detailed Academic Explanation:
Limestone is the correct answer to “Fusion of bauxite and __________ produces high alumina cement.”. This question is standard in competitive examination syllabi for Chemical Process.
💡Key Conceptual Anchor:Chemical Process
Question 32 of 40
★ FPSC
★ PPSC
★ FPSC
★ PPSC
Fusion of limestone and __________ produces high alumina cement.
Correct Answer: Option B — Bauxite
Detailed Academic Explanation:
Bauxite is the correct answer to “Fusion of limestone and __________ produces high alumina cement.”. This question is standard in competitive examination syllabi for Chemical Process.
💡Key Conceptual Anchor:Chemical Process
Question 33 of 40
★ FPSC
★ PPSC
★ FPSC
★ PPSC
Which of the following, when pyrolysed, produces perchloro-ethylene?
Correct Answer: Option C — Carbon tetrachloride
Detailed Academic Explanation:
Carbon tetrachloride is the correct answer to “Which of the following, when pyrolysed, produces perchloro-ethylene”. This question is standard in competitive examination syllabi for Chemical Process.
💡Key Conceptual Anchor:Chemical Process
Question 34 of 40
★ FPSC
★ PPSC
★ FPSC
★ PPSC
Naphthalene is removed from coke oven gas by
Correct Answer: Option C — Scrubbing with wash oil
Detailed Academic Explanation:
Scrubbing with wash oil is the correct answer to “Naphthalene is removed from coke oven gas by”. This question is standard in competitive examination syllabi for Chemical Process.
💡Key Conceptual Anchor:Chemical Process
Question 35 of 40
★ FPSC
★ PPSC
★ FPSC
★ PPSC
Hydrophilic group of a soap or detergent solution is
Correct Answer: Option C — Water loving
Detailed Academic Explanation:
Water loving is the correct answer to “Hydrophilic group of a soap or detergent solution is”. This question is standard in competitive examination syllabi for Chemical Process.
💡Key Conceptual Anchor:Chemical Process
Question 36 of 40
★ FPSC
★ PPSC
★ FPSC
★ PPSC
__________ is obtained as a by-product in the manufacture of sodium hydroxide using brine.
Correct Answer: Option A — Chlorine
Detailed Academic Explanation:
Chlorine is the correct answer to “__________ is obtained as a by-product in the manufacture of sodium hydroxide using brine.”. This question is standard in competitive examination syllabi for Chemical Process.
💡Key Conceptual Anchor:Chemical Process
Question 37 of 40
★ FPSC
★ PPSC
★ FPSC
★ PPSC
High temperature carbonisation of coal takes place at __________ °C.
Correct Answer: Option C — 1100
Detailed Academic Explanation:
1100 is the correct answer to “High temperature carbonisation of coal takes place at __________ °C.”. This question is standard in competitive examination syllabi for Chemical Process.
💡Key Conceptual Anchor:Chemical Process
Question 38 of 40
★ FPSC
★ PPSC
★ FPSC
★ PPSC
Low temperature carbonisation of coal takes place at __________ °C.
Correct Answer: Option C — 700
Detailed Academic Explanation:
700 is the correct answer to “Low temperature carbonisation of coal takes place at __________ °C.”. This question is standard in competitive examination syllabi for Chemical Process.
💡Key Conceptual Anchor:Chemical Process
Question 39 of 40
★ FPSC
★ PPSC
★ FPSC
★ PPSC
Mercury electrolytic cell produces 50-70% NaOH solution. Its operating temperature is __________ °C.
Correct Answer: Option B — 60-70
Detailed Academic Explanation:
60-70 is the correct answer to “Mercury electrolytic cell produces 50-70% NaOH solution. Its operating temperature is __________ °C.”. This question is standard in competitive examination syllabi for Chemical Process.
💡Key Conceptual Anchor:Chemical Process
Question 40 of 40
★ FPSC
★ PPSC
★ FPSC
★ PPSC
Comparing sulphate process with sulphite process, we find that __________ in the later.
Correct Answer: Option B — Both temperature & pressure in the former is more than that
Detailed Academic Explanation:
Both temperature & pressure in the former is more than that is the correct answer to “Comparing sulphate process with sulphite process, we find that __________ in the later.”. This question is standard in competitive examination syllabi for Chemical Process.
💡Key Conceptual Anchor:Chemical Process
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Chemical Engineering Basics — Part 1
Master the next curriculum module with 40 exam-standard MCQs.
In competitive commission exams (FPSC, PPSC, KPPSC, SPSC, CSS, PMS), questions are frequently phrased with distractor options designed to catch rote learners. Whenever you answer an MCQ, read the Detailed Academic Explanation and Conceptual Anchor to understand why the remaining options are incorrect.