__________ catalyst is used in the production of urea from CO2 and NH3 . (A) Vanadium pentoxide (B) No (C) Alumina (D) Nicke

__________ catalyst is used in the production of urea from CO2 and
NH3
.
(A) Vanadium pentoxide
(B) No
(C) Alumina
(D) Nicke
by

1 Answer

Answer :

(B) No
by

Related questions

Catalyst used in the manufacture of NH3 by Haber's process is finely divided (A) Nickel (B) Iron (C) Vanadium pentoxide (D) Alumina

Description : Catalyst used in the manufacture of NH3 by Haber's process is finely divided (A) Nickel (B) Iron (C) Vanadium pentoxide (D) Alumina

Last Answer : (B) Iron

Catalyst used in the catalytic cracking is (A) Silica-alumina (B) Silica gel (C) Vanadium pentoxide (D) Nickel

Description : Catalyst used in the catalytic cracking is (A) Silica-alumina (B) Silica gel (C) Vanadium pentoxide (D) Nickel

Last Answer : (A) Silica-alumina

Catalyst used in the 'catalytic converter' employed in automobile exhaust line for complete combustion/oxidation of carbon monoxide, nitrogen oxides and hydrocarbons is (A) Alumina (B) Platinum (C) Vanadium pentoxide (D) Iron oxide

Description : Catalyst used in the 'catalytic converter' employed in automobile exhaust line for complete combustion/oxidation of carbon monoxide, nitrogen oxides and hydrocarbons is (A) Alumina (B) Platinum (C) Vanadium pentoxide (D) Iron oxide

Last Answer : Option B

Catalyst used in Haber's process for ammonia production is (A) Reduced iron oxide (B) Nickel (C) Vanadium pentoxide (D) Silica gel

Description : Catalyst used in Haber's process for ammonia production is (A) Reduced iron oxide (B) Nickel (C) Vanadium pentoxide (D) Silica gel

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Catalyst used in the catalytic polymerisation is (A) Phosphoric acid on kieselguhr (B) Aluminium chloride (C) Nickel (D) Vanadium pentoxide

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Oxidation of ortho-xylene in presence of __________ catalyst is done to produce phthalic anhydride on commercial scale. (A) Nickel (B) Vanadium (C) Alumina (D) Iron

Description : Oxidation of ortho-xylene in presence of __________ catalyst is done to produce phthalic anhydride on commercial scale. (A) Nickel (B) Vanadium (C) Alumina (D) Iron

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Description : The catalyst used in shift converter is (A) Nickel (B) Vanadium (C) Silica gel (D) Alumina

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The catalyst used in shift converter is (A) Nickel (B) Vanadium (C) Silica gel (D) Alumina

Description : The catalyst used in shift converter is (A) Nickel (B) Vanadium (C) Silica gel (D) Alumina

Last Answer : (A) Nickel

Raw materials for urea production are (A) CO2 and N2 (B) CO2 , H2 and N2 (C) NH3 and CO (D) HNO3 and CaCO3

Description : Raw materials for urea production are (A) CO2 and N2 (B) CO2 , H2 and N2 (C) NH3 and CO (D) HNO3 and CaCO3

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. Catalyst used in the catalytic converter employed in automobiles to convert CO into CO2 and for complete oxidation of un-burnt hydrocarbons is (A) Nickel (B) Cobalt (C) Vanadium (D) Platinum

Description : . Catalyst used in the catalytic converter employed in automobiles to convert CO into CO2 and for complete oxidation of un-burnt hydrocarbons is (A) Nickel (B) Cobalt (C) Vanadium (D) Platinum

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Automobile exhaust is passed through two compartments catalytic converter employing platinum as catalyst for (A) Conversion of CO into CO2 in the second compartment (B) Conversion of NOx into N2 and NH3 in the first compartment (C) Oxidation of unburnt hydrocarbon fuel in the second compartment (D) All (A), (B) and (C)

Description : Automobile exhaust is passed through two compartments catalytic converter employing platinum as catalyst for (A) Conversion of CO into CO2 in the second compartment (B) Conversion of NOx into N2 and NH3 in the first ... of unburnt hydrocarbon fuel in the second compartment (D) All (A), (B) and (C)

Last Answer : (D) All (A), (B) and (C)

Pick out the correct statement. (A) Reaction of NH3 with HNO3 to produce (NH4 )2NO3 is endothermic (B) With increase in NH3 /CO2 ratio, urea yield decreases for a given temperature, pressure and total feed rate (C) Biuret (an intermediate during urea manufacture) is toxic to seeds and animals (D) Both (B) and (C)

Description : Pick out the correct statement. (A) Reaction of NH3 with HNO3 to produce (NH4 )2NO3 is endothermic (B) With increase in NH3 /CO2 ratio, urea yield decreases for a given temperature, pressure and total ... (an intermediate during urea manufacture) is toxic to seeds and animals (D) Both (B) and (C)

Last Answer : (B) With increase in NH3 /CO2 ratio, urea yield decreases for a given temperature, pressure and total feed rate

Urea is represented as (A) NH2 .CO.NH2 (B) NH3CO.CH3 (C) NH.CO2 .NH (D) NH3 .CO2 .NH3

Description : Urea is represented as (A) NH2 .CO.NH2 (B) NH3CO.CH3 (C) NH.CO2 .NH (D) NH3 .CO2 .NH3

Last Answer : (A) NH2 .CO.NH2

An increase in the NH3 /CO2 ratio in urea manufacture results in (A) Increased degree of conversion of CO2 to urea (B) Decreased degree of conversion of NH3 to urea (C) Decreased yield of urea (D) Decreased specific volume of molten mass

Description : An increase in the NH3 /CO2 ratio in urea manufacture results in (A) Increased degree of conversion of CO2 to urea (B) Decreased degree of conversion of NH3 to urea (C) Decreased yield of urea (D) Decreased specific volume of molten mass

Last Answer : (A) Increased degree of conversion of CO2 to urea

Along with CO2, NH3 and ATP, the amino acid that is needed in urea cycle is (A) Alanine (B) Isoleucine (C) Aspartate (D) Glycine

Description : Along with CO2, NH3 and ATP, the amino acid that is needed in urea cycle is (A) Alanine (B) Isoleucine (C) Aspartate (D) Glycine

Last Answer : Answer : C

The catalyst used in the production of elemental sulphur from H2S (by oxidation-reduction) is (A) Alumina (B) Silica gel(C) Platinum(D) Nickel

Description : The catalyst used in the production of elemental sulphur from H2S (by oxidation-reduction) is (A) Alumina (B) Silica gel (C) Platinum (D) Nickel

Last Answer : (A) Alumina

During nitric acid manufacture, catalytic oxidation of ammonia at 800°C in presence of platinum catalyst produces nitrogen oxide. Conversion of NH3 to NO is about __________ percent. (A) 38 (B) 68 (C) 82 (D) 98

Description : During nitric acid manufacture, catalytic oxidation of ammonia at 800°C in presence of platinum catalyst produces nitrogen oxide. Conversion of NH3 to NO is about __________ percent. (A) 38 (B) 68 (C) 82 (D) 98

Last Answer : (D) 98

Raw materials required for the production of CAN (Calcium ammonium nitrate) is NH3 (A) HNO3 & limestone (B) CO2 & H2SO4 (C) HNO3 & NH4Cl (D) CO2 & KNO3

Description : Raw materials required for the production of CAN (Calcium ammonium nitrate) is NH3 (A) HNO3 & limestone (B) CO2 & H2SO4 (C) HNO3 & NH4Cl (D) CO2 & KNO3

Last Answer : (A) HNO3 & limestone

NH3 is removed from brain mainly by (A) Creatinine formation (B) Uric acid production (C) Urea formation (D) Glutamine formation

Description : NH3 is removed from brain mainly by (A) Creatinine formation (B) Uric acid production (C) Urea formation (D) Glutamine formation

Last Answer : Answer : D

In the manufacture of H2SO4 , vanadium catalyst as compared to platinum catalyst (A) Gives higher conversion efficiency (B) Has a longer life and is not poisoned by arsenic (C) Handles lower SO2 content gas (7 -10% SO2 ), thus increasing the capital cost of the plant (D) All (A), (B) and (C)

Description : In the manufacture of H2SO4 , vanadium catalyst as compared to platinum catalyst (A) Gives higher conversion efficiency (B) Has a longer life and is not poisoned by arsenic (C) Handles lower SO2 content gas (7 -10% SO2 ), thus increasing the capital cost of the plant (D) All (A), (B) and (C)

Last Answer : (D) All (A), (B) and (C)

Formation of ammonium carbamate by reaction of NH3 with CO2 is a/an __________ reaction. (A) Catalytic (B) Exothermic (C) Endothermic (D) Reversible

Description : Formation of ammonium carbamate by reaction of NH3 with CO2 is a/an __________ reaction. (A) Catalytic (B) Exothermic (C) Endothermic (D) Reversible

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Acid rains are produced by (a) excess NO2 and SO2 from burning fossil fuels (b) excess production of NH3 by industry and coal gas (c) excess release of carbon monoxide by incomplete combustion (d) excess formation of CO2 by combustion and animal respiration.

Description : Acid rains are produced by (a) excess NO2 and SO2 from burning fossil fuels (b) excess production of NH3 by industry and coal  gas (c) excess release of carbon monoxide by incomplete  combustion (d) excess formation of CO2 by combustion and  animal respiration.

Last Answer : (a) excess NO2 and SO2 from burning fossil fuels

Acid rains are produced by (a) excess NO2 and SO2 from burning fossil fuels (b) excess production of NH3 by industry and coal gas (c) excess release of carbon monoxide by incomplete combustion (d) excess formation of CO2 by combustion and animal respiration.

Description : Acid rains are produced by (a) excess NO2 and SO2 from burning fossil fuels (b) excess production of NH3 by industry and coal gas (c) excess release of carbon monoxide by incomplete combustion (d) excess formation of CO2 by combustion and animal respiration.

Last Answer : (a) excess NO2 and SO2 from burning fossil fuels

Pick out the wrong statement. (A) Lower boiling paraffins have higher octane number than higher paraffins (B) Dehydrogenation of naphthenes to aromatics is a desirable reaction in reforming process (C) The most ideal feedstock for thermal reforming is dearomatised kerosene (D) Catalyst used in catalytic reforming is platinum on silica-alumina base

Description : Pick out the wrong statement. (A) Lower boiling paraffins have higher octane number than higher paraffins (B) Dehydrogenation of naphthenes to aromatics is a desirable reaction in reforming ... is dearomatised kerosene (D) Catalyst used in catalytic reforming is platinum on silica-alumina base

Last Answer : (C) The most ideal feedstock for thermal reforming is dearomatised kerosene

. Which of the following is used as a catalyst in fluidised bed catalytic cracking? (A) Silica-magnesia (B) Silica-alumina (C) Bentonite clays (D) All (A), (B) and (C

Description : . Which of the following is used as a catalyst in fluidised bed catalytic cracking? (A) Silica-magnesia (B) Silica-alumina (C) Bentonite clays (D) All (A), (B) and (C

Last Answer : (D) All (A), (B) and (C

Catalyst used in catalytic reforming is (A) Platinum on alumina (B) Nickel (C) Iron (D) Aluminium chloride

Description : Catalyst used in catalytic reforming is (A) Platinum on alumina (B) Nickel (C) Iron (D) Aluminium chloride

Last Answer : (A) Platinum on alumina

Catalyst used in the isomerisation is (A) Aluminium chloride (B) Alumina (C) Nickel (D) Phosphoric acid

Description : Catalyst used in the isomerisation is (A) Aluminium chloride (B) Alumina (C) Nickel (D) Phosphoric acid

Last Answer : (A) Aluminium chloride

Catalyst used in alkylation process is (A) Sulphuric acid (B) Nickel (C) Silica gel (D) Alumina

Description : Catalyst used in alkylation process is (A) Sulphuric acid (B) Nickel (C) Silica gel (D) Alumina

Last Answer : (A) Sulphuric acid

Catalyst used in Fischer-Tropsch process is (A) Nickel (B) Zinc oxide (C) Alumina (D) Thorium oxide

Description : Catalyst used in Fischer-Tropsch process is (A) Nickel (B) Zinc oxide (C) Alumina (D) Thorium oxide

Last Answer : (A) Nickel

Catalyst used in steam reforming of naphtha is (A) Bauxite (B) Cobalt (C) Nickel oxide on alumina support (D) Chromium

Description : Catalyst used in steam reforming of naphtha is (A) Bauxite (B) Cobalt (C) Nickel oxide on alumina support (D) Chromium

Last Answer : (C) Nickel oxide on alumina support

Pick out the wrong statement. (A) Use of different catalysts in a reversible catalytic chemical reaction does not change the equilibrium composition (B) Alumina is added as a promoter to iron catalyst in ammonia synthesis reaction (C) Activation energy for a reaction is obtained from the intercept of the Arrhenius plot (D) Presence of inerts affects the equilibrium conversion of reactants in a chemical reaction

Description : Pick out the wrong statement. (A) Use of different catalysts in a reversible catalytic chemical reaction does not change the equilibrium composition (B) Alumina is added as a promoter to ... Arrhenius plot (D) Presence of inerts affects the equilibrium conversion of reactants in a chemical reaction

Last Answer : (C) Activation energy for a reaction is obtained from the intercept of the Arrhenius plot

Catalyst used in the hydrogenation of oil is (A) Nickel (B) Platinum (C) Iron (D) Alumina

Description : Catalyst used in the hydrogenation of oil is (A) Nickel (B) Platinum (C) Iron (D) Alumina

Last Answer : (A) Nickel

The catalyst used in the manufacture of DDT is (A) Alumina (B) Silica (C) 20% oleum (D) Aluminium chloride

Description : The catalyst used in the manufacture of DDT is (A) Alumina (B) Silica (C) 20% oleum (D) Aluminium chloride

Last Answer : (C) 20% oleum

__________ gas is normally employed in B.E.T. method of finding out the surface area of catalyst. (A) N2 (B) H2(C) CO2(D) He

Description : __________ gas is normally employed in B.E.T. method of finding out the surface area of catalyst. (A) N2 (B) H2 (C) CO2 (D) He

Last Answer : (A) N2

Promoter used in NH3 synthesis catalyst is (A) K2O (B) SiO3 (C) V2O5 (D) U2O3

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Multistage operation (as in the case of catalytic oxidation of SO2 ) is not carried out for NH3 synthesis, because of (A) Comparatively higher pressure drop (B) High cost of the high pressure vessel used for the reactor (C) Higher pumping cost (D) Chances of entrainment and disturbance of catalyst bed

Description : Multistage operation (as in the case of catalytic oxidation of SO2 ) is not carried out for NH3 synthesis, because of (A) Comparatively higher pressure drop (B) High cost of the high pressure ... for the reactor (C) Higher pumping cost (D) Chances of entrainment and disturbance of catalyst bed

Last Answer : (B) High cost of the high pressure vessel used for the reactor

Which of the following may be viewed as a catalyst in the manufacturesoda ash by Solvay process?(A) NH3(B) NaCl(C) CaO(D) Coke

Description : Which of the following may be viewed as a catalyst in the manufacturesoda ash by Solvay process? (A) NH3 (B) NaCl (C) CaO (D) Coke

Last Answer : (A) NH3

A fertiliser contains 82% N2 . It could be (A) Urea (B) Liquid NH3 (C) Ammonium nitrate (D) None of these

Description : A fertiliser contains 82% N2 . It could be (A) Urea (B) Liquid NH3 (C) Ammonium nitrate (D) None of these

Last Answer : (B) Liquid NH3

Mercury is transported in metal containers made of (A) Aluminium (B) Iron (C) Lead (D) Nicke

Description : Mercury is transported in metal containers made of (A) Aluminium (B) Iron (C) Lead (D) Nicke

Last Answer : (B) Iron

Inconel is an alloy of (A) Tin, zinc and nicke(B) Iron, nickel and chromium(C) Copper and nickel(D) Copper and tin

Description : Inconel is an alloy of (A) Tin, zinc and nicke (B) Iron, nickel and chromium (C) Copper and nickel (D) Copper and tin

Last Answer : (B) Iron, nickel and chromium

CO2 can be absorbed by (A) Hot cupric oxide (B) Heated charcoal (C) Cold Ca(OH)2 (D) Alumina

Description : CO2 can be absorbed by (A) Hot cupric oxide (B) Heated charcoal (C) Cold Ca(OH)2 (D) Alumina

Last Answer : (B) Heated charcoal

Coke oven gas burns with a yellowish flame, because of the presence of (A) CO2 (B) CH4 (C) H2(D) NH3

Description : Coke oven gas burns with a yellowish flame, because of the presence of (A) CO2 (B) CH4 (C) H2 (D) NH3

Last Answer : (B) CH4

. Shift conversion reaction (A) Converts N2 and H2 into NH3 (B) Converts CO to CO2 with steam (C) Is non-catalytic (D) Is highly exothermic

Description : . Shift conversion reaction (A) Converts N2 and H2 into NH3 (B) Converts CO to CO2 with steam (C) Is non-catalytic (D) Is highly exothermic

Last Answer : (B) Converts CO to CO2 with steam

Impurities present in brine is normally removed by treatment with(A) NH3 and CO2(B) Lime and soda ash(C) Lime, ammonia and carbon(D) All (A), (B) and (C)

Description : Impurities present in brine is normally removed by treatment with (A) NH3 and CO2 (B) Lime and soda ash (C) Lime, ammonia and carbon (D) All (A), (B) and (C)

Last Answer : (D) All (A), (B) and (C)

Refrigerants commonly used for domestic refrigerators are (A) Ethyl chloride or methyl chloride (B) Freon-12 (C) Propane (D) NH3 or CO2

Description : Refrigerants commonly used for domestic refrigerators are (A) Ethyl chloride or methyl chloride (B) Freon-12 (C) Propane (D) NH3 or CO2

Last Answer : (A) Ethyl chloride or methyl chloride

Reaction of Cresylic acid with __________ produces Tricresyl phosphate.(A) Phosphorous pentoxide (B) Phosphorous oxychloride (C) Ammonium phosphate (D) Calcium phosphate

Description : Reaction of Cresylic acid with __________ produces Tricresyl phosphate.. (A) Phosphorous pentoxide (B) Phosphorous oxychloride (C) Ammonium phosphate (D) Calcium phosphate

Last Answer : (B) Phosphorous oxychloride

The reagent needed to convert 2-butyne to cis-2-butene is : (a) H2/Pt (b) H2/Lindlar’s catalyst (c) Li/NH3 (d) Na/NH3

Description : The reagent needed to convert 2-butyne to cis-2-butene is : (a) H2/Pt (b) H2/Lindlar’s catalyst (c) Li/NH3 (d) Na/NH3

Last Answer : H2/Lindlar’s catalyst

The four nitrogen atoms of purines are derived from (A) Urea and NH3 (B) NH3, Glycine and Glutamate (C) NH3, Asparate and Glutamate (D) Aspartate, Glutamine and Glycine

Description : The four nitrogen atoms of purines are derived from (A) Urea and NH3 (B) NH3, Glycine and Glutamate (C) NH3, Asparate and Glutamate (D) Aspartate, Glutamine and Glycine

Last Answer : Answer : D

When NH3 is perfused through a dog’s liver ______ is formed, while ______ is formed in the birds liver. (A) Urea, Uric acid (B) Urea, allantoin (C) Uric acid, creatinine (D) Uric acid, Urea

Description : When NH3 is perfused through a dog’s liver ______ is formed, while ______ is formed in the birds liver. (A) Urea, Uric acid (B) Urea, allantoin (C) Uric acid, creatinine (D) Uric acid, Urea

Last Answer : Answer : A

Mechanism by which NH3 is removed from the kidneys is (A) Urea formation (B) Uric acid formation (C) Creatinine formation (D) None of these

Description : Mechanism by which NH3 is removed from the kidneys is (A) Urea formation (B) Uric acid formation (C) Creatinine formation (D) None of these

Last Answer : Answer : D