361. In premitive days, __________ was being manufactured by Leblanc Process.
Alum
Washing soda
Soda ash
Calcium carbide
✅ The correct answer is option C.
Chemical Process MCQs
362. Which of the following is used as a coagulant in treating turbid water?
Chlorine
Ferric sulphate
Calcium sulphate
Activated carbon
✅ The correct answer is option B.
364. Nicotine is
A volatile alkaloid
Obtained by treating by-products of the tobacco processing industry
Both A and B
Neither A nor B
✅ The correct answer is option C.
365. Low purity oxygen is used for
L.D. steel making
Cutting and welding of metals
Medicinal purposes
Chemical oxidation processes
✅ The correct answer is option D.
366. Chemical name of ‘alum’ is
Barium sulphate
Aluminium sulphate
Aluminium chloride
Calcium sulphate
✅ The correct answer is option B.
367. Stereospecific agents are exemplified by
Radiation
Supported metal oxide catalysts
Ziegler catalysts
All of the above
✅ The correct answer is option D.
368. __________ is an ore of lead.
Quartz
Galena
Siderite
Chalcopyrite
✅ The correct answer is option B.
369. Double Contact Double Absorption (DCDA) process is the most recent process for the manufacture of
Nitric acid
Sulphuric acid
Ammonium sulphate
Hydrochloric acid
✅ The correct answer is option B.
370. The main use of activated carbon in water treatment is to control
Bacterial growth
Taste and odour
Turbidity
None of these
✅ The correct answer is option B.