Extraction with amyl or butyl acetate
Ternery azeotropic distillation
Evaporation in calendria
Extractive distillation
✅ The correct answer is option A.
Chemical Process MCQs
162. The chamber process is
Preferred over contact process for producing 98 to 100% H₂SO₄ and various oleums
Non-catalytic and operates only on pyrites
A batch process for directly producing high strength (98 to 100%) H₂SO₄
None of these
✅ The correct answer is option D.
163. Which form of sulphur is the most stable at room temperature?
Plastic
Monoclinic
Rhombic
Flowers of sulphur
✅ The correct answer is option C.
164. Bakelite is chemically known as
Polyvinyl chloride (PVC)
Polybutadiene
Phenol formaldehyde
Polyurathane
✅ The correct answer is option C.
165. Yellow glycerine is made into white, using
Activated carbon
Diatomaceous earth
Bauxite
Bentonite
✅ The correct answer is option A.
166. Massacuits is a terminology used in the __________ industry.
Paint
Oil hydrogenation
Soap
Sugar
✅ The correct answer is option D.
167. Concentration of NaOH solution produced by diaphragm electrolytic cell is about __________ percent.
10
25
50
98
✅ The correct answer is option A.
168. Nylon 6-6 is manufactured from
Hexamethylene diamine and adipic acid
Hexamethylene diamine and maleic anhydride
Caprolactum
Dimethyl terephthalate and ethylene glycol
✅ The correct answer is option A.
169. Le-Blanc process is a primitive process for the manufacture of
Caustic soda
Soda ash
Bromine from sea water
Hydrochloric acid
✅ The correct answer is option B.
170. DDT should not be allowed to come in contact with iron (during its manufacture) to
Avoid its decomposition
Prevent sulphonation of the monochlorobenzene by the acid catalyst
Achieve non-hygroscopic property
None of these
✅ The correct answer is option A.