Fish contains about _______________ percent oil ?
A. 5
B. 10
C. 20
D. 35
Chemical Process
Solvent extracted oil________________?
Solvent extracted oil________________?
A. Has low free fatty acid content
B. Is odourless
C. Has more of unsaturates
D. None of these
______________ is obtained as a by-product in the manufacture of sodium hydroxide using brine ?
______________ is obtained as a by-product in the manufacture of sodium hydroxide using brine ?
A. Chlorine
B. Ammonium chloride
C. Sodium carbonate
D. Sodium bi-carbonate
Phenol is mainly used____________________?
Phenol is mainly used____________________?
A. To produce benzene
B. To produce phenol formaldehyde
C. To produce polyester resin
D. As a plasticiser for unsaturated polyester
Phthalic anhydride is used____________________?
Phthalic anhydride is used____________________?
A. In making PVC
B. As plasticisers
C. In insecticides manufacture
D. For making nylon-6
______________ glass has the lowest co-efficient of thermal expansion and hence is more heat resistant ?
______________ glass has the lowest co-efficient of thermal expansion and hence is more heat resistant ?
A. Pyrex
B. Soda lime
C. Lead
D. High silica
Which is the most suitable dye for synthetic fibres ?
Which is the most suitable dye for synthetic fibres ?
A. Acid dye
B. Azoic dye
C. Pigment dye
D. Mordant dye
Nickel is not used as a catalyst in the____________________?
Nickel is not used as a catalyst in the____________________?
A. Fischer-Tropsch process
B. Shift conversion
C. Hydrogenation of oil
D. Ostwald’s process of HNO3 manufacture
Hard water____________________?
Hard water____________________?
A. Does not affect the lather formation by soap
B. Is not unfit for drinking purpose
C. Pollutes the water stream
D. All A, B. and C
Zeolite removes both temporary as well as permanent hardness of water by precipitating calcium and magnesium present in water as insoluble zeolites. Used zeolite is regenerated by flushing with the solution of_____________________?
Zeolite removes both temporary as well as permanent hardness of water by precipitating calcium and magnesium present in water as insoluble zeolites. Used zeolite is regenerated by flushing with the solution of_____________________?
A. Calcium sulphate
B. Sodium chloride
C. Sodium sulphate
D. Magnesium chloride