Main constituents of cotton fiber is
Lignin
Cellulose
Starch
Gelatine
- Calgon used in water treatment is chemically
- Impurities present in brine is normally removed by treatment with
- Coke oven gas consists mainly of
- Pick out the wrong statement pertaining to the soap manufacture.
- Heating of __________ to 120°C, produces plaster of paris.
- Setting of plaster of Paris is accompanied with
- Which oil is preferred for paint manufacture?
- Potassium is kept & transported under
- High purity nitrogen is used in
- Styrene-butadiene-rubber (SBR) as compared to natural rubber has
- P.T.F.E. (Poly tetra fluoro ethylene) is commercially known as
- Glycerine can be obtained from
- Oils are partially hydrogenated (not fully) to manufacture Vanaspati, because fully saturated solidified…
- Phthalic anhydride is made by the
- Thermoplastic materials
- Sucrose is a
- In contact process, SO3 is absorbed in 97% H2SO4 and not in water, because
- __________ is an ore of lead.
- Exothermic condensation reaction of monochlorobenzene with chloral in presence of 20% oleum as catalyst…
- In industrial nomenclature, alcohol means
- Acetone is produced by catalytic dehydrogenation of
- Chemical name of aspirin (an analgesic drug) is
- Main product in calcium carbide-water reaction is
- Na2CO3.10H2O is called
- Dry ice (solidified CO2) is used for the
- Nylon-6 as compared to Nylon-66 is having higher
- __________ is the major constituent of the Portland cement.
- Ore concentration by froth floatation utilises the __________ of ore particles.
- Coagulant is used __________ filtration.
- Magnesium and calcium __________ cause temporary hardness of water.