4991. The major constituents of glass are
Lime, clay and soda ash
Sand, lime and soda ash
Silica, alumina and clay
Silica, alumina and soda ash
✅ The correct answer is option B.
Chemical Engineering
Prepare with the best Chemical Engineering MCQs with answers and detailed explanations for exams and job tests. Our collection covers key topics such as chemical process calculations, thermodynamics, fluid mechanics, heat transfer, mass transfer, reaction engineering, instrumentation, and plant design. These Chemical Engineering multiple-choice questions are ideal for students, competitive exam aspirants, and professionals preparing for NTS, PPSC, FPSC, PEC exams, GATE, university entry tests, and job interviews. Practice online with updated Chemical Engineering MCQs to strengthen your concepts and improve technical problem-solving skills.
4992. Phosphoric acid is prepared from
Cryolite
Chalcopyrite
Rock phosphate
None of these
✅ The correct answer is option C.
4993. Insulin is an __________ drug.
Anti-malarial
Anti-TB
Antibiotic
None of these
✅ The correct answer is option D.
4994. Carboxymethyl cellulose (CMC) is added in detergents to act as a/an
Surfactant
Builder
Optical brightening agent
Anti soil redeposition agent
✅ The correct answer is option D.
4995. Ore concentration by froth floatation utilises the __________ of ore particles.
Density difference
Wetting characteristics
Terminal velocities
None of these
✅ The correct answer is option B.
4996. Dehydrogenation of isopropanol produces
Propyl alcohol
Acetone
Trichloroethylene
Formaldehyde
✅ The correct answer is option B.
4997. Nitrogen is an essential component of
Mineral salts
Carbohydrates
Fats
Proteins
✅ The correct answer is option D.
4998. Pick out the wrong statement pertaining to solvent extraction of oil.Rate of extraction
Decreases with decrease of thickness of the flakes
Increases with the increasing flake size keeping the flake thickness constant
Increases Considerably with the rise of temperature
Decreases as the moisture content of flakes increases
✅ The correct answer is option D.
4999. Lindane is
Not a fumigant
BHC (Benzene Hexa Chloride) containing 99% γ-isomer
A by-product of BHC manufacture
Both B and C
✅ The correct answer is option B.
5000. Glycerine is recovered from lye by
Evaporation followed by vacuum distillation
Liquid extraction technique
Extractive distillation technique
None of these
✅ The correct answer is option A.