Brackish water which contains mostly dissolved salt, can be purified by the __________ process.
Brackish water which contains mostly dissolved salt, can be purified by the __________ process.
Essential oils are usually obtained using
Essential oils are usually obtained using
Cooking liquor in case of sulphite process is
Cooking liquor in case of sulphite process is
The terminology 'BTX' used in coal tar distillation industry refers to
The terminology 'BTX' used in coal tar distillation industry refers to
Graphite is a/an
Graphite is a/an
Viscosity index improver (like polystrene or polyisobutylene) is added to lubricant to
Viscosity index improver (like polystrene or polyisobutylene) is added to lubricant to
Chemical formula of 'salt cake' is
Chemical formula of 'salt cake' is
Fusel oil is a/an
Fusel oil is a/an
The main component of pyrex glass is
The main component of pyrex glass is
Hydrazine is largely used
Hydrazine is largely used
Which of the following is not a pyrite ore?
Which of the following is not a pyrite ore?
The combustion reaction, C + O₂ = CO₂, is
The combustion reaction, C + O₂ = CO₂, is
The compressive strength of cement should not be less than about 110Kg/cm² after three days & not less than 170Kg/cm² after seven days. The fineness of an ordinary cement as determined by turbidimetric method should be about __________ cm²/gm.
The compressive strength of cement should not be less than about 110Kg/cm² after three days & not less than 170Kg/cm² after seven days. The fineness of an ordinary cement as determined by turbidimetric method should be about __________ cm²/gm.
The most stable allotropic form of phosphorous is the __________ phosphorous.
The most stable allotropic form of phosphorous is the __________ phosphorous.
Glycerine can be obtained from
Glycerine can be obtained from
Lime and soda ash are added to water to remove
Lime and soda ash are added to water to remove
__________ is the major constituent of the Portland cement.
__________ is the major constituent of the Portland cement.
Gun powder uses
Gun powder uses
SO₂ is bubbled through hot sugar cane juice to
SO₂ is bubbled through hot sugar cane juice to
Frasch process is for
Frasch process is for
White phosphorous is stored under water, because
White phosphorous is stored under water, because
Which oil is preferred for paint manufacture?
Which oil is preferred for paint manufacture?
Chalcopyrite is the main ore of
Chalcopyrite is the main ore of
Iron ore hametite is concentrated using
Iron ore hametite is concentrated using
Deacon's method is used for the manufacture of
Deacon's method is used for the manufacture of
Thermosetting plastic materials
Thermosetting plastic materials
Use of chlorine in the treatment of sewage
Use of chlorine in the treatment of sewage
Industrial production of chloroform requires acetone and
Industrial production of chloroform requires acetone and
Sulphuric acid completely saturated with sulphur trioxide is called
Sulphuric acid completely saturated with sulphur trioxide is called
Insulin is an __________ drug.
Insulin is an __________ drug.
Glauber's salt is chemically
Glauber's salt is chemically
Which of the following is a constituent of coffee?
Which of the following is a constituent of coffee?
Pencillin, an antibiotic drug was discovered by
Pencillin, an antibiotic drug was discovered by
__________ is produced using polycondensation reaction.
__________ is produced using polycondensation reaction.
Detergent is produced by the sulphonation of dodecyl benzene, which is an __________ reaction.
Detergent is produced by the sulphonation of dodecyl benzene, which is an __________ reaction.
Fumigant insecticides
Fumigant insecticides
Which of the following is an endothermic reaction?
Which of the following is an endothermic reaction?
Which of the following is an explosive?
Which of the following is an explosive?
Phthalic anhydride is made by the
Phthalic anhydride is made by the
An oil is converted into fat by its
An oil is converted into fat by its
The yield of tar from high temperature carbonisation of dry coal is about __________ percent.
The yield of tar from high temperature carbonisation of dry coal is about __________ percent.
Which of the following is an unsaturated fatty acid?
Which of the following is an unsaturated fatty acid?
Main constituent of limestone is
Main constituent of limestone is
Bleaching of paper pulp is done with
Bleaching of paper pulp is done with
In Kraft process of paper manufacture, white cooking liquor consists of caustic soda
In Kraft process of paper manufacture, white cooking liquor consists of caustic soda
Basic oxide is absent in __________ glass.
Basic oxide is absent in __________ glass.
Hydrolysis of sugar is called
Hydrolysis of sugar is called
Hollander beater used during paper pulp manufacture does not facilitate the __________ of fibre.
Hollander beater used during paper pulp manufacture does not facilitate the __________ of fibre.
Concentration of NaOH solution produced by mercury electrolytic cell is about __________ percent.
Concentration of NaOH solution produced by mercury electrolytic cell is about __________ percent.
Electrodeposition of metals i.e. electroplating is never done on
Electrodeposition of metals i.e. electroplating is never done on
Starting raw material for the manufacture of alum is
Starting raw material for the manufacture of alum is
Pick out the wrong statement pertaining to the soap manufacture.
Pick out the wrong statement pertaining to the soap manufacture.
Flux addition during smelting of ore is done to
Flux addition during smelting of ore is done to
Ethyl alcohol cannot be produced
Ethyl alcohol cannot be produced
Solvay process is used for the manufacture of
Solvay process is used for the manufacture of
Plasticisers are added to paints to
Plasticisers are added to paints to
Yellow phosphorus is transported under
Yellow phosphorus is transported under
Very fine suspended and colloidal impurities are removed from water by a process called
Very fine suspended and colloidal impurities are removed from water by a process called
Commercial scale production of hydrogen from iron-steam reaction represented by, 3Fe + 3H₂O = Fe₃O₄ + 4H₂, is not practised, as it is
Commercial scale production of hydrogen from iron-steam reaction represented by, 3Fe + 3H₂O = Fe₃O₄ + 4H₂, is not practised, as it is
Haemoglobin is a/an
Haemoglobin is a/an
The amount of benzene present in pure benzol is about __________ percent.
The amount of benzene present in pure benzol is about __________ percent.
Which of the following impurities in feed water for high pressure boiler is the most detrimental?
Which of the following impurities in feed water for high pressure boiler is the most detrimental?
Glycerine is not used in the
Glycerine is not used in the
Catalytic oxidation-dehydrogenation of methyl alcohol produces
Catalytic oxidation-dehydrogenation of methyl alcohol produces
Zeolite used in water softening process (cation exchange) is regenerated by washing with
Zeolite used in water softening process (cation exchange) is regenerated by washing with
Which of the following is the most adverse factor challenging the choice of mercury electrolytic cell process for the production of caustic soda?
Which of the following is the most adverse factor challenging the choice of mercury electrolytic cell process for the production of caustic soda?
Commonly used glass is known as the __________ glass.
Commonly used glass is known as the __________ glass.
Pick out the wrong statement pertaining to the properties of glasses. Glasses generally have
Pick out the wrong statement pertaining to the properties of glasses. Glasses generally have
Gypsum is chemically
Gypsum is chemically
High magnesia lime is added to hot sugar cane juice (during the manufacture of sugar) to
High magnesia lime is added to hot sugar cane juice (during the manufacture of sugar) to
Which catalyst is used in the manufacture of ethylene oxide by oxidation of ethylene?
Which catalyst is used in the manufacture of ethylene oxide by oxidation of ethylene?
During the absorption of HCl gas in water (to produce liquid HCl), the gas is kept above dew point to
During the absorption of HCl gas in water (to produce liquid HCl), the gas is kept above dew point to
Stereospecific agents are exemplified by
Stereospecific agents are exemplified by
Inversion of sucrose produces
Inversion of sucrose produces
Which is the most efficient absorbant for SO₃ out of the following?
Which is the most efficient absorbant for SO₃ out of the following?
At very high concentration of enzymes, the rate of fermentation chemical reaction is __________ the concentration of reactants.
At very high concentration of enzymes, the rate of fermentation chemical reaction is __________ the concentration of reactants.
High purity nitrogen is used in
High purity nitrogen is used in
The function of gypsum addition during cement making is to
The function of gypsum addition during cement making is to
Reaction of ethylene glycol and dimethyl terephthalate (DMT) produces
Reaction of ethylene glycol and dimethyl terephthalate (DMT) produces
Portland cement consists mainly of
Portland cement consists mainly of
Chemical formula of BHC, which is an insecticide is
Chemical formula of BHC, which is an insecticide is
Ethylene oxide is produced by oxidation of ethylene in presence of AgO catalyst at
Ethylene oxide is produced by oxidation of ethylene in presence of AgO catalyst at
Concentration of NaOH solution produced by diaphragm electrolytic cell is about __________ percent.
Concentration of NaOH solution produced by diaphragm electrolytic cell is about __________ percent.
The product obtained on mixing calcium oxide with water is called
The product obtained on mixing calcium oxide with water is called
Coke oven gas consists mainly of
Coke oven gas consists mainly of
P.T.F.E. (Poly tetra fluoro ethylene) is commercially known as
P.T.F.E. (Poly tetra fluoro ethylene) is commercially known as
Catalyst used in the hydrogenation of oil is
Catalyst used in the hydrogenation of oil is
Kaoline is a/an
Kaoline is a/an
Pick out the correct statement.
Pick out the correct statement.
Kopper-Totzek coal gasifier
Kopper-Totzek coal gasifier
Coagulant is used __________ filtration.
Coagulant is used __________ filtration.
Hydrogenation of oil does not
Hydrogenation of oil does not
Sodium chloride content in sea water is about __________ gms/litre.
Sodium chloride content in sea water is about __________ gms/litre.
Carbon disulphide is mainly used in the production of
Carbon disulphide is mainly used in the production of
Salt is added in the kettle during soap manufacture to separate
Salt is added in the kettle during soap manufacture to separate
In the Lurgi coal gasifier
In the Lurgi coal gasifier
