Which of the following is used as a coagulant in treating turbid water?
Which of the following is used as a coagulant in treating turbid water?
Production of one ton of dry paper pulp requires about __________ tons of bamboo or wood.
Production of one ton of dry paper pulp requires about __________ tons of bamboo or wood.
Titanium dioxide is a/an __________ colour pigment.
Titanium dioxide is a/an __________ colour pigment.
Vinyl chloride (CH₂ = CH.Cl) is produced by the thermal pyrolysis of ethylene dichloride at a pressure & temperature of
Vinyl chloride (CH₂ = CH.Cl) is produced by the thermal pyrolysis of ethylene dichloride at a pressure & temperature of
Catalyst used in the manufacture of sulphuric acid by chamber & contact processes are respectively
Catalyst used in the manufacture of sulphuric acid by chamber & contact processes are respectively
Carbon tetrachloride (CCl₄) is the starting raw material for the manufacture of
Carbon tetrachloride (CCl₄) is the starting raw material for the manufacture of
__________ paper is used in the manufacture of newsprint paper.
__________ paper is used in the manufacture of newsprint paper.
__________ is a thermosetting plastic.
__________ is a thermosetting plastic.
Hydrogenation of edible vegetable oils
Hydrogenation of edible vegetable oils
Digestion of wood-base materials (for manufacture of pulp) is done to
Digestion of wood-base materials (for manufacture of pulp) is done to
Presence of H₂S in raw water (to be chlorinated) results in the
Presence of H₂S in raw water (to be chlorinated) results in the
The noble gas which occurs most abundantly in the atmosphere is
The noble gas which occurs most abundantly in the atmosphere is
Wood charcoal is used for decolouration of sugar, because it __________ the coloured materials.
Wood charcoal is used for decolouration of sugar, because it __________ the coloured materials.
Celluloid is chemically
Celluloid is chemically
Fermentator temperature during production of alcohol from molasses is around __________ °C.
Fermentator temperature during production of alcohol from molasses is around __________ °C.
Favourable conditions for the liquefaction of gases in general are
Favourable conditions for the liquefaction of gases in general are
Which is the most suitable dye for synthetic fibres?
Which is the most suitable dye for synthetic fibres?
Chemical name of Grignard reagent is
Chemical name of Grignard reagent is
__________ is a thermosetting plastic.
__________ is a thermosetting plastic.
Main constituent of dolomite is
Main constituent of dolomite is
The temperature in the calcium carbide furnace is __________ °C.
The temperature in the calcium carbide furnace is __________ °C.
Polythene is a/an __________ polymerisation product.
Polythene is a/an __________ polymerisation product.
Salt is the basic raw material for the manufacture of
Salt is the basic raw material for the manufacture of
Calcination of gypsum produces
Calcination of gypsum produces
Fatty material used in soap making is
Fatty material used in soap making is
Chemical name of aspirin (an analgesic drug) is
Chemical name of aspirin (an analgesic drug) is
Pencillin is made employing __________ fermentation process.
Pencillin is made employing __________ fermentation process.
The catalyst used in the production of elemental sulphur from H₂S (by oxidation-reduction) is
The catalyst used in the production of elemental sulphur from H₂S (by oxidation-reduction) is
Fire clay is __________ refractory material.
Fire clay is __________ refractory material.
The basic difference between vegetable oils and fats is in their
The basic difference between vegetable oils and fats is in their
Calcination of limestone is not done in a __________ kiln for producing lime.
Calcination of limestone is not done in a __________ kiln for producing lime.
10% oleum comprises of 10% free
10% oleum comprises of 10% free
Presence of carbonaceous matter in the sewage
Presence of carbonaceous matter in the sewage
Raw materials for 'Solvay Process' for manufacture of the soda ash are
Raw materials for 'Solvay Process' for manufacture of the soda ash are
The difference between saponification value and acid value is
The difference between saponification value and acid value is
BHC (Benzene hexachloride) is made by the chlorination of benzene
BHC (Benzene hexachloride) is made by the chlorination of benzene
Bitterns is a/an
Bitterns is a/an
Saponification number of an oil or fat
Saponification number of an oil or fat
Calcareous & argillaceous materials are used in the manufacture of
Calcareous & argillaceous materials are used in the manufacture of
Bordeaux mixture is a/an
Bordeaux mixture is a/an
Chemical name of 'alum' is
Chemical name of 'alum' is
Addition of calcium oxide to water produces
Addition of calcium oxide to water produces
Carborundum consists mainly of
Carborundum consists mainly of
For the hydrogenation of oils (i) __________ is commonly used as catalyst and (ii) __________ is a catalyst poison.
For the hydrogenation of oils (i) __________ is commonly used as catalyst and (ii) __________ is a catalyst poison.
Sand and __________ is fused at 1300°C, to produce sodium silicate.
Sand and __________ is fused at 1300°C, to produce sodium silicate.
Baking soda is chemically represented by
Baking soda is chemically represented by
Free alkali in a toilet soap is __________ that in a laundary shop.
Free alkali in a toilet soap is __________ that in a laundary shop.
In contact process, SO₃ is absorbed in 97% H₂SO₄ and not in water, because
In contact process, SO₃ is absorbed in 97% H₂SO₄ and not in water, because
__________ nature of hypo (sodium thiosulphate) makes it useful in photography.
__________ nature of hypo (sodium thiosulphate) makes it useful in photography.
Platinum is a versatile catalyst for many processes in chemical industries. It is highly prone to be poisoned by the presence of
Platinum is a versatile catalyst for many processes in chemical industries. It is highly prone to be poisoned by the presence of
Penicillin is separated from fermented broth by
Penicillin is separated from fermented broth by
Ca(OH)₂ is called
Ca(OH)₂ is called
Co-efficient of thermal expansion of glass is decreased by the addition of __________ during its manufacture.
Co-efficient of thermal expansion of glass is decreased by the addition of __________ during its manufacture.
More than 100 percent of __________ is present in oleum.
More than 100 percent of __________ is present in oleum.
Multistage catalytic converter is not used in the
Multistage catalytic converter is not used in the
CaSO₄ .1/2 H₂O is known as
CaSO₄ .1/2 H₂O is known as
Pick out the wrong statement.
Pick out the wrong statement.
__________ is a polysacchride.
__________ is a polysacchride.
Lubricating greases are a mixture of
Lubricating greases are a mixture of
99.5% purity oxygen is used in
99.5% purity oxygen is used in
__________ process is used for the commercial production of nitric acid by the catalytic oxidation of ammonia.
__________ process is used for the commercial production of nitric acid by the catalytic oxidation of ammonia.
Nitroglycerene absorbed in wood flour, sodium nitrate or ammonium nitrate is commercially used as a controlled explosive called dynamite. The raw material used for its manufacture are glycerene, nitric acid and
Nitroglycerene absorbed in wood flour, sodium nitrate or ammonium nitrate is commercially used as a controlled explosive called dynamite. The raw material used for its manufacture are glycerene, nitric acid and
Bakelite is chemically known as
Bakelite is chemically known as
Bio-degradable detergents
Bio-degradable detergents
Poly Vinyl Chloride (P.V.C.) is a __________ material.
Poly Vinyl Chloride (P.V.C.) is a __________ material.
Temperature during hydrogenation of oil should not be more than 200°C, otherwise it will result in
Temperature during hydrogenation of oil should not be more than 200°C, otherwise it will result in
Hydrogenation of oil takes place in a/an __________ reactor.
Hydrogenation of oil takes place in a/an __________ reactor.
Washing soda is chemically represented by
Washing soda is chemically represented by
Metallic soap is __________ salt of fatty acids.
Metallic soap is __________ salt of fatty acids.
Consider the production of ammonia from methene and air as raw materials. The catalyst used are:
(i) __________ for steam reforming of methane and
(ii) __________ for ammonia synthesis.
Consider the production of ammonia from methene and air as raw materials. The catalyst used are:
(i) __________ for steam reforming of methane and
(ii) __________ for ammonia synthesis.
Which of the following is an organo-metal-lic compound?
Which of the following is an organo-metal-lic compound?
The main product of high temperature carbonisation of coal is
The main product of high temperature carbonisation of coal is
Commercial production of Vanaspati is done by __________ of edible vegetable oils.
Commercial production of Vanaspati is done by __________ of edible vegetable oils.
Refractory bricks having high thermal conductivity is desirable, when it is to be used in the
Refractory bricks having high thermal conductivity is desirable, when it is to be used in the
Sizing material is incorporated in paper to
Sizing material is incorporated in paper to
CaO is called
CaO is called
Plasticisers are added to synthetic plastics to
Plasticisers are added to synthetic plastics to
Analgesic drugs are
Analgesic drugs are
Blue vitriol is chemically
Blue vitriol is chemically
Rancidity of the fatty oil can be reduced by its
Rancidity of the fatty oil can be reduced by its
Chemical formula of oleum is
Chemical formula of oleum is
20% oleum means that in 100 kg oleum, there are 20 kg of
20% oleum means that in 100 kg oleum, there are 20 kg of
In industrial nomenclature, alcohol means
In industrial nomenclature, alcohol means
Alcohol is produced by the
Alcohol is produced by the
The major constituents of glass are
The major constituents of glass are
Cement mainly contains
Cement mainly contains
Pick out the wrong statement.
Pick out the wrong statement.
Polycaprolactum is commercially known as
Polycaprolactum is commercially known as
Oxidation of ortho-xylene in presence of __________ catalyst is done to produce phthalic anhydride on commercial scale.
Oxidation of ortho-xylene in presence of __________ catalyst is done to produce phthalic anhydride on commercial scale.
Chemical name of soda ash is
Chemical name of soda ash is
Impurities present in brine is normally removed by treatment with
Impurities present in brine is normally removed by treatment with
All enzymes are made of
All enzymes are made of
__________ is an ore of lead.
__________ is an ore of lead.
Reaction of an alcohol with organic acid is called the __________ reaction.
Reaction of an alcohol with organic acid is called the __________ reaction.
Pick out the wrong statement.
Pick out the wrong statement.
High temperature carbonisation of coal produces
High temperature carbonisation of coal produces
Phosphate rock is a raw material for the manufacture of
Phosphate rock is a raw material for the manufacture of
At a given temperature, the equilibrium yield of SO₃ obtained from the oxidation of SO₂ is proportional to (where, P = pressure of the system )
At a given temperature, the equilibrium yield of SO₃ obtained from the oxidation of SO₂ is proportional to (where, P = pressure of the system )
