Alcohol percentage in molasses may be around
10
40
70
85
Correct Answer :
B. 40
Related Questions
Main product in calcium carbide-water reaction is
Ca(OH)2
C2H2
CO2
CaCO3
Chemical formula of BHC, which is an insecticide is
C6H6Cl6
C6Cl6
C6H5Cl
C6H4Cl2
Hydrocyanic acid (HCN) is used as an insecticide for
Controlling timber degradation by ants
Controlling poultry lice
Potato beetle
Citrus fruits
Removal of dirt/soil by soaps or detergent does not involve the __________ of soil.
Emulsification
Dispersion
Precipitation
Wetting
Penicillin, an antibiotic drug was discovered by
Alexander
Flaming
Doctor Zhivago
None of these
__________ is the major constituent of the Portland cement.
Calcium carbonate
Calcium oxide
Tricalcium silicate
Calcium sulphate
__________ is obtained as a by-product in the manufacture of sodium hydroxide using brine.
Chlorine
Ammonium chloride
Sodium carbonate
Sodium bi-carbonate
Bromine content in sea water may be around __________ ppm.
70
640
1875
2500
Exothermic neutralisation reaction between caustic soda and dodecylbenzene sulfonic acid produces sodium dodecylbenzene sulphate, which is a/an
Explosive
Soap
Detergent
Analgesic drug
Which one of the following is not likely to be a constituent of vegetable oils?
Citric acid
Oleic acid
Stearic acid
Glycerol
__________ is a polysaccharide.
Maltose
Starch
Sucrose
Glucose
__________ is used as a catalyst in fat splitting.
ZnO
Ni
V2O5
FeO
Which of the following fuel gases contains maximum amount of carbon monoxide?
Coke oven gas
Water gas
Blast furnace gas
L.D. converter gas
__________ is used as a flux in the extraction of iron from iron ore (haematite) in blast furnace.
Bauxite
Limestone
Quartz
Manganese
Commonly used glass is known as the __________ glass.
Flint
Hard
Pyrex
Soda
Oils are partially hydrogenated (not fully) to manufacture Vanaspati, because fully saturated solidified oils
Cause cholesterol build up and blood clotting
Are prone to rancid oxidation
Always contain some amount of nickel (as their complete removal is very difficult)
Have affinity to retain harmful sulphur compounds
Magnesium and calcium __________ cause temporary hardness of water.
Carbonates
Bicarbonates
Phosphates
Sulphates
Major component of flint glass is
Lead oxide
Silica
Alumina
Soda
How much temperature is maintained during quicklime manufacture in the calcination zone of the vertical shaft kiln?
500°C
750°C
1000°C
1500°C
Common salt is generally not produced commonly by __________ method from brine.
Freeze drying
Electrolytic
Solar evaporation
Vacuum evaporation
Alcohol percentage in molasses may be around
10
40
70
85
Drinking (potable) water treatment does not involve
Coagulation
Sedimentation
Softening
Disinfection
Which oil is preferred for paint manufacture?
Drying oil
Non-drying oil
Semi-drying oil
Saturated oil
Which of the following is the second major component of cement?
Al2O3
CaO
SiO2
Fe2O3
Kopper-Totzek coal gasifier
Can give ammonia synthesis gas (H2 + N2)
Is a moving bed reactor
Cannot use coking coal
Operate at very high pressure
Carboxymethyl cellulose (CMC) is added in detergents to act as a/an
Surfactant
Builder
Optical brightening agent
Anti soil redeposition agent
Pick out the wrong statement.
DDT is manufactured by the condensation of chlorobenzene with chloral at 30°C in presence of oleum, which is a highly exothermic reaction
Chloral is obtained by the chlorination of ethyl alcohol
Insecticides acting on the insects through the respiratory system are called fumigants
Benzene hexachloride is not a contact insecticide
The purpose of tanning in leather industry is to
Stiffen the leather
Smoothen the leather
Make it flexible
Impart water resistance
The main use of HCl is in the
Drilling of petroleum wells and pickling of steel sheets
Manufacture of cationic detergent
Treatment of spent fuel of nuclear reactor
None of these
Blue colour is imparted to glass by the addition of
FeSO4
PbO
CaO
NaOH