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?
Frasch process is for
Frasch process is for
Basic oxide is absent in __________ glass.
Basic oxide is absent in __________ glass.
Glycerine can be obtained from
Glycerine can be obtained from
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
Chalcopyrite is the main ore of
Chalcopyrite is the main ore of
Which of the following is not a pyrite ore?
Which of the following is not a pyrite ore?
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 is a constituent of coffee?
Which of the following is a constituent of coffee?
Bleaching of paper pulp is done with
Bleaching of paper pulp is done with
Coagulant is used __________ filtration.
Coagulant is used __________ filtration.
The product obtained on mixing calcium oxide with water is called
The product obtained on mixing calcium oxide with water is called
Ethyl alcohol cannot be produced
Ethyl alcohol cannot be produced
Pick out the wrong statement pertaining to the soap manufacture.
Pick out the wrong statement pertaining to the soap manufacture.
Electrodeposition of metals i.e. electroplating is never done on
Electrodeposition of metals i.e. electroplating is never done on
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.
Coke oven gas consists mainly of
Coke oven gas consists mainly of
Pick out the correct statement.
Pick out the correct statement.
Hydrogenation of oil does not
Hydrogenation of oil does not
Gun powder uses
Gun powder uses
Cooking liquor in case of sulphite process is
Cooking liquor in case of sulphite process is
Fusel oil is a/an
Fusel oil is a/an
Gypsum is chemically
Gypsum is chemically
Catalytic oxidation-dehydrogenation of methyl alcohol produces
Catalytic oxidation-dehydrogenation of methyl alcohol produces
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.
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
Plasticisers are added to paints to
Plasticisers are added to paints to
Hydrolysis of sugar is called
Hydrolysis of sugar is called
Yellow phosphorus is transported under
Yellow phosphorus is transported under
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.
Fumigant insecticides
Fumigant insecticides
__________ is produced using polycondensation reaction.
__________ is produced using polycondensation reaction.
SO₂ is bubbled through hot sugar cane juice to
SO₂ is bubbled through hot sugar cane juice to
Phthalic anhydride is made by the
Phthalic anhydride is made by the
Carbon disulphide is mainly used in the production of
Carbon disulphide is mainly used in the production of
Viscosity index improver (like polystrene or polyisobutylene) is added to lubricant to
Viscosity index improver (like polystrene or polyisobutylene) is added to lubricant to
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
Use of chlorine in the treatment of sewage
Use of chlorine in the treatment of sewage
Glycerine is not used in the
Glycerine is not used in the
Inversion of sucrose produces
Inversion of sucrose produces
Flux addition during smelting of ore is done to
Flux addition during smelting of ore is done to
Which of the following is an unsaturated fatty acid?
Which of the following is an unsaturated fatty acid?
Essential oils are usually obtained using
Essential oils are usually obtained using
Stereospecific agents are exemplified by
Stereospecific agents are exemplified by
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
The function of gypsum addition during cement making is to
The function of gypsum addition during cement making is to
Insulin is an __________ drug.
Insulin is an __________ drug.
An oil is converted into fat by its
An oil is converted into fat by its
P.T.F.E. (Poly tetra fluoro ethylene) is commercially known as
P.T.F.E. (Poly tetra fluoro ethylene) is commercially known as
Concentration of NaOH solution produced by mercury electrolytic cell is about __________ percent.
Concentration of NaOH solution produced by mercury electrolytic cell is about __________ percent.
Sulphuric acid completely saturated with sulphur trioxide is called
Sulphuric acid completely saturated with sulphur trioxide is called
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
Catalyst used in the hydrogenation of oil is
Catalyst used in the hydrogenation of oil is
The most stable allotropic form of phosphorous is the __________ phosphorous.
The most stable allotropic form of phosphorous is the __________ phosphorous.
Sodium chloride content in sea water is about __________ gms/litre.
Sodium chloride content in sea water is about __________ gms/litre.
Glauber's salt is chemically
Glauber's salt is chemically
Solvay process is used for the manufacture of
Solvay process is used for the manufacture of
In the Lurgi coal gasifier
In the Lurgi coal gasifier
Pencillin, an antibiotic drug was discovered by
Pencillin, an antibiotic drug was discovered by
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
Reaction of ethylene glycol and dimethyl terephthalate (DMT) produces
Reaction of ethylene glycol and dimethyl terephthalate (DMT) produces
The main component of pyrex glass is
The main component of pyrex glass is
Commonly used glass is known as the __________ glass.
Commonly used glass is known as the __________ glass.
Kaoline is a/an
Kaoline is a/an
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
Iron ore hametite is concentrated using
Iron ore hametite is concentrated using
Portland cement consists mainly of
Portland cement consists mainly of
Concentration of NaOH solution produced by diaphragm electrolytic cell is about __________ percent.
Concentration of NaOH solution produced by diaphragm electrolytic cell is about __________ percent.
Which of the following is an explosive?
Which of the following is an explosive?
Main constituent of limestone is
Main constituent of limestone is
Salt is added in the kettle during soap manufacture to separate
Salt is added in the kettle during soap manufacture to separate
Industrial production of chloroform requires acetone and
Industrial production of chloroform requires acetone and
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
The terminology 'BTX' used in coal tar distillation industry refers to
The terminology 'BTX' used in coal tar distillation industry refers to
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.
Deacon's method is used for the manufacture of
Deacon's method is used for the manufacture of
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?
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.
Which of the following is an endothermic reaction?
Which of the following is an endothermic reaction?
Chemical formula of 'salt cake' is
Chemical formula of 'salt cake' is
Lime and soda ash are added to water to remove
Lime and soda ash are added to water to remove
Which is the most efficient absorbant for SO₃ out of the following?
Which is the most efficient absorbant for SO₃ out of the following?
Thermosetting plastic materials
Thermosetting plastic materials
Which oil is preferred for paint manufacture?
Which oil is preferred for paint manufacture?
Hydrazine is largely used
Hydrazine is largely used
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?
High purity nitrogen is used in
High purity nitrogen is used in
Graphite is a/an
Graphite is a/an
The combustion reaction, C + O₂ = CO₂, is
The combustion reaction, C + O₂ = CO₂, is
Chemical formula of BHC, which is an insecticide is
Chemical formula of BHC, which is an insecticide is
Starting raw material for the manufacture of alum is
Starting raw material for the manufacture of alum is
Kopper-Totzek coal gasifier
Kopper-Totzek coal gasifier
White phosphorous is stored under water, because
White phosphorous is stored under water, because
__________ is the major constituent of the Portland cement.
__________ is the major constituent of the Portland cement.
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.
Haemoglobin is a/an
Haemoglobin is a/an
