381. DDT stands for
Diethyl-diphenyl-trichloromethane
Dichloro-diphenyl-trichloromethane
Diphenyl-dichloro-trichloromethane
Dichloro-diphenyl-trichloroethane
✅ The correct answer is option D.
Chemical Process MCQs
382. Deacon’s method is used for the manufacture of
Glauber’s salt
Common salt
Chlorine
Graphite electrode
✅ The correct answer is option C.
383. Which of the following is a constituent of coffee?
Caffeine
Nicotine
Calgon
Lignin
✅ The correct answer is option A.
384. ‘Synthesis gas’ meant for the synthesis of organic compound is a variable mixture of
N₂ & H₂
CO₂ & H₂
CO & H₂
C & H₂
✅ The correct answer is option C.
385. Gypsum is chemically
Calcium chloride
Potassium sulphate
Sodium sulphate
Calcium sulphate
✅ The correct answer is option D.
386. Inversion of sucrose produces
Fructose
Glucose
Both A & B
Neither A nor B
✅ The correct answer is option B.
387. Soaps remove dirt by
Increasing the surface tension
Decreasing wettability
Supplying hydrophyllic group
None of these
✅ The correct answer is option D.
388. Neoprene is a
Monomer
Synthetic rubber
Polyester
None of these
✅ The correct answer is option B.
389. Vegetable oils and fats basically differ in their
Density ranges
Physical state
Chemical composition
Chemical properties
✅ The correct answer is option B.
390. Viscose rayon is chemically
Cellulose nitrate
Regenerated cellulose nitrate
Cellulose acetate
Regenerated cellulose acetate
✅ The correct answer is option D.