Flint
Hard
Pyrex
Soda
✅ The correct answer is option D.
Chemical Process MCQs
Salt is added in the kettle during soap manufacture to separate
Soap from lye
Glycerine from lye
The metallic soap
The unsaponified fat from soap
✅ The correct answer is option A.
90% of the caprolactum is converted to nylon-6 on its condensation polymerisation in the reactor maintained at __________ °C.
<0
Oct-30
250-280
500-600
✅ The correct answer is option B.
Cumene (isopropyl benzene) is made by
Oxidation of napthalene
Propylene alkylation of benzene
Polymerisation of a mixture of benzene & propylene
None of these
✅ The correct answer is option B.
Concentration of NaOH solution produced by diaphragm electrolytic cell is about __________ percent.
10
25
50
98
✅ The correct answer is option A.
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.
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.
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.
Drinking (potable) water treatment does not involve
Coagulation
Sedimentation
Softening
Disinfection
✅ The correct answer is option C.
Essential oils are usually obtained using
Steam distillation
Extractive distillation
Solvent extraction
Leaching
✅ The correct answer is option D.