321. __________ is a thermosetting plastic.
Polyvinyl chloride
Polythene
Bakelite
Teflon
✅ The correct answer is option C.
Chemical Process MCQs
322. Solvent used for extraction of oil is
Hexane
Methyl ethyl ketone
Furfurol
None of these
✅ The correct answer is option A.
323. Extraction of __________ employs an electrolytic process.
Aluminium
Silver
Copper
All of the above
✅ The correct answer is option A.
324. Molecular weights of polymers are in the range of
10² – 10²
10⁵ – 10⁹
10² – 10⁷
10⁹ – 10¹¹
✅ The correct answer is option C.
325. Pencillin, an antibiotic drug was discovered by
Alexender
Flaming
Dr. Zivago
None of these
✅ The correct answer is option A.
326. Phthalic anhydride is made by the
Oxidation of naphthalene
Oxidation of benzene
Dehydrogenation of ethyl benzene
None of these
✅ The correct answer is option A.
327. Bisphenol A is produced by the condensation of acetone with
Formaldehyde
Ethyl alcohol
Diethyl ether
Phenol
✅ The correct answer is option D.
328. Separation of fresh water from sea water can be done by the __________ operation.
Osmosis
Reverse osmosis
Absorption
Adsorption
✅ The correct answer is option B.
329. Nitroglycerene absorbed in wood flour, sodium nitrate or ammonium nitrate is commercially used as a controlled explosive called dynamite. The raw material used for its manufacture are glycerene, nitric acid and
Sulphuric acid
Phosphoric acid
Hydrochloric acid
Hydroflouric acid
✅ The correct answer is option A.
330. Glauber’s salt is chemically
Calcium sulphate
Potassium sulphate
Potassium chlorate
None of these
✅ The correct answer is option D.