ECAT Chemistry — Industrial Chemistry
Industrial Chemistry is part of the Chemistry section of the UET ECAT (30 of the 100 MCQs). It breaks into 3 subtopics, and we hold 15 ECAT-pattern practice MCQs on it, each with a written explanation. Tap a subtopic below to practise just that.
Subtopics (3)
How Industrial Chemistry is tested
Across the 7 ECAT past papers on ParhaiKrlo, Industrial Chemistry accounts for 7 questions. It appears in 6 of them, about 1.2 questions a paper. The heaviest was ECAT Past Paper 01, with 2 questions, and the most recent is ECAT Past Paper 07, with 1.
| Paper | Questions |
|---|---|
| ECAT Past Paper 07 | 1 |
| ECAT Past Paper 06 | 1 |
| ECAT Past Paper 04 | 1 |
| ECAT Past Paper 03 | 1 |
| ECAT Past Paper 02 | 1 |
| ECAT Past Paper 01 | 2 |
Industrial Chemistry MCQs from the ECAT past papers
Try each one before opening the answer. Each comes with a short explanation.
- Q1 · ECAT Past Paper 07 · Industrial Chemistry
The important use of lime in agriculture is:
- A.For chlorophyll development
- B.As a fertilizer
- C.For neutralizing acidic soils
- D.To increase fruit production
Show answer
Answer: C. For neutralizing acidic soils — Lime (CaO/Ca(OH)₂) is basic and neutralises soil acidity.
- Q2 · ECAT Past Paper 06 · Industrial Chemistry
Which of the following is NOT used as a fertilizer?
- A.Anhydrous ammonia
- B.Sodium hydroxide
- C.Calcium nitrate
- D.Diammonium phosphate
Show answer
Answer: B. Sodium hydroxide — NaOH supplies no plant nutrient (N, P, K) and is corrosive.
- Q3 · ECAT Past Paper 04 · Industrial Chemistry
Which of the following is NOT used as a fertilizer?
- A.Ozone
- B.Chlorine dioxide
- C.Chlorine
- D.All of the above
Show answer
Answer: D. All of the above — Ozone, chlorine dioxide and chlorine are oxidising disinfectants; none supplies plant nutrients.