Which oil is preferred for paint manufacture?
Drying oil
Non-drying oil
Semi-drying oil
Saturated oil
Correct Answer :
A. Drying oil
Related Questions
Phthalic anhydride is produced by the oxidation of
Naphthalene
Benzene
Toluene
Aniline
Main constituent of limestone is
CaCO3
MgCO3
Na2CO3
CaSO4
Solvay process is not used for the manufacture of potassium carbonate, because of the reason that potassium bicarbonate
Is prone to thermal decomposition
Has high water solubility and is unstable
Is soluble in ammonium chloride and potassium chloride solution
All (A), (B) and (C)
Concentration of hydrogen peroxide is done by
Crystallisation
Vacuum crystallisation
Atmospheric distillation
Dehydration
The most commonly used substance to speed up the sedimentation of sewage is
Lime
Sulphuric acid
Chlorine
Sodium bisulphite
Fats as compared to oils have
More unsaturated glycerides of fatty acids
Less unsaturated glycerides of fatty acids
Much higher reactivity to oxygen
Lower melting point
Massecuite is a terminology used in the __________ industry.
Paint
Oil hydrogenation
Soap
Sugar
Production of alcohol by fermentation of molasses is a/an __________ process.
Anaerobic
Aerobic
Endothermic
Both (B) and (C)
Which is the most suitable dye for synthetic fibres?
Acid dye
Azoic dye
Pigment dye
Mordant dye
Commercially ethylene is produced from naphtha by
Catalytic cracking
Catalytic dehydrogenation
Pyrolysis
Hydrocracking
Dechlorination of treated water is necessary to
Remove residual turbidity
Reduce the bacterial load on filter
Control taste and odour
Remove chlorinous taste
Viscose rayon is chemically
Cellulose nitrate
Regenerated cellulose nitrate
Cellulose acetate
Regenerated cellulose acetate
Chloral is used in the manufacture of
DDT
BHC
Parathion
None of these
Chalcopyrite is the main ore of
Copper
Lead
Tin
Iron
Vegetable oils contain large quantity of glycerides of unsaturated acids. When the vegetable oils contain high amount of saturated fatty acids, it is termed as __________ oil.
Drying
Semi-drying
Non-drying
None of these
In industrial nomenclature, alcohol means
Butyl alcohol
Propyl alcohol
Ethanol
Methyl alcohol
Which of the following is not responsible for causing permanent hardness of water?
Ca(HCO3)2
CaCl2
MgCl2
None of these
Acetone is produced by catalytic dehydrogenation of
Phenol
Naphthalene
Isopropanol
Ethyl benzene
Hydrazine (N2H4) is used mainly as a/an
Explosive
Rocket fuel
Detergents additive
None of these
What products do we get on electrolysis of saturated brine using steel cathode and graphite anode in an electrolytic cell?
Cl2 & Na
Cl2 & H2
O2 & H2
Cl2, H2 & NaOH solution
Starting material for the production of styrene butadiene rubber (SBR) is
Ethyl alcohol
Ethylene
Both (A) & (B)
Neither (A) nor (B)
Sea water contains about __________ ppm of bromine.
5
70
500
1700
Double Contact Double Absorption (DCDA) process is the most recent process for the manufacture of
Nitric acid
Sulphuric acid
Ammonium sulphate
Hydrochloric acid
Catalyst used during the manufacture of 'Vanaspati Ghee' is
Zinc
Nickel
Platinum
Copper
Rancidity of the fatty oil can be reduced by its
Decoloration
Hydrogenation
Oxidation
Purification
Litharge is
Lead oxide
Zinc oxide
Zinc sulphide
Cellulosic photographic material
Ethyl alcohol cannot be produced
From waste sulphite substrate of paper mills
By Esterification and hydrolysis of ethylene
From molasses
None of these
Which is the main reducing agent during production of iron from iron ore in a blast furnace?
C
CO
CO2
H2
Which of the following processes does not produce Cl2 as a co-product during the manufacture of caustic soda?
Diaphragm electrolytic cell process
Mercury electrolytic cell process
Lime-soda process
None of these
Molasses is the starting material for the production of
Alcohol
Essential oil
Fatty acids
Massecuite