Choose the correct option of temperature at which carbon reduced `FeO` to iron and produces `CO`

Choose the correct option of temperature at which carbon reduced `FeO` to iron and produces `CO`
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Choose the correct option of temperature at which carbon reduced `FeO` to iron and produces `CO` A. ... at point D D. Above temperature at point A
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Choose the correct option of temperature at which carobon reduces FeO to iron and produces CO.

Description : Choose the correct option of temperature at which carobon reduces FeO to iron and produces CO.

Last Answer : Choose the correct option of temperature at which carobon reduces FeO to iron and produces CO. A. ... at point D0 D. Above temperature at point A

At the temperature corresponding to which of the points in Fig. `FeO` will be reduced to Fe by coupling the reaction `2Fe rarr 2Fe +O_(2)` with all of

Description : At the temperature corresponding to which of the points in Fig. `FeO` will be reduced to Fe by coupling the reaction `2Fe rarr 2Fe +O_(2)` with all of

Last Answer : At the temperature corresponding to which of the points in Fig. `FeO` will be reduced to Fe by coupling the ... A B. Point B C. Point D D. Point E

FeO (s) + CO (g) = Fe (s) + CO2 (g), k = 0. 435 at 1173E; at equilibrium, what will be the number of moles of CO gas required to reduce one mole of FeO at 1173 K? (A) 1.0 (B) 1.3 (C) 2.3 (D) 3.3

Description : FeO (s) + CO (g) = Fe (s) + CO2 (g), k = 0. 435 at 1173E; at equilibrium, what will be the number of moles of CO gas required to reduce one mole of FeO at 1173 K? (A) 1.0 (B) 1.3 (C) 2.3 (D) 3.3

Last Answer : Option D

For the reduction of `FeO` at the temperature corresponding to point D, which of the following statements is correct?

Description : For the reduction of `FeO` at the temperature corresponding to point D, which of the following statements is correct?

Last Answer : For the reduction of `FeO` at the temperature corresponding to point D, which of the ... overall reduction reaction with carbon monoxides is negative

For the reduction of `FeO` at the temperature corresponding to point D, which of the following statements is correct?

Description : For the reduction of `FeO` at the temperature corresponding to point D, which of the following statements is correct?

Last Answer : For the reduction of `FeO` at the temperature corresponding to point D, which of the ... overall reductioon reaction with carbon monoxide is negative

(A): At 1200K iron can be reduce cuprous oxide (R )L: At 1200K, `Fe+Cu_(2)O to FeO+2Cu` `DeltaG=-300kj//"mole"`

Description : (A): At 1200K iron can be reduce cuprous oxide (R )L: At 1200K, `Fe+Cu_(2)O to FeO+2Cu` `DeltaG=-300kj//"mole"`

Last Answer : (A): At 1200K iron can be reduce cuprous oxide (R )L: At 1200K, `Fe+Cu_(2)O to FeO+2Cu` ` ... incorrect D. If (A) is incorrect but (R ) is correct

(4) A mixture of Fe₂O₃, 3H₂O and FeO Explanation: Several forms of rust are distinguishable both visually and by spectroscopy, and form under different circumstances. Rust consists of hydrated iron (III) oxides Fe2O

Description : (4) A mixture of Fe₂O₃, 3H₂O and FeO Explanation: Several forms of rust are distinguishable both visually and by spectroscopy, and form under different circumstances. Rust consists of hydrated iron (III) oxides Fe2O

Last Answer : Catalyst is a substance which – (1) increases the rate of the reaction (2) decreases the rate of reaction (3) has no action on the rate of the reaction (4) None of these

The slag which floats on the surface of the molten iron generally contains (A) Lime (CaO) 45% (B) Silica (SiO2) 35% (C) Alumina (Al2O3) 12% and MgO, CaSO4, KMnO2 and FeO 8% (D) All the above

Description : The slag which floats on the surface of the molten iron generally contains (A) Lime (CaO) 45% (B) Silica (SiO2) 35% (C) Alumina (Al2O3) 12% and MgO, CaSO4, KMnO2 and FeO 8% (D) All the above

Last Answer : Answer: Option D

The slag which floats on the surface of the molten iron generally contains (A) Lime (CaO) 45% (B) Silica (SiO2) 35% (C) Alumina (Al2O3) 12% and MgO, CaSO4, KMnO2 and FeO 8% (D) All these

Description : The slag which floats on the surface of the molten iron generally contains (A) Lime (CaO) 45% (B) Silica (SiO2) 35% (C) Alumina (Al2O3) 12% and MgO, CaSO4, KMnO2 and FeO 8% (D) All these

Last Answer : Answer: Option D

.Match the terms in column I with their description in column II and choose the correct option. Column I Column II A. Dominance (i) Many genes govern a single character B. Co-dominance (ii) In a heterozygous organism only one allele expresses itself C. Pleiotropy (iii) In a heterozygous organism both alleles express themselves fully D. Polygenic (iv) A single gene inheritance influences many characters A B C D (a) (iv) (i) (ii) (iii) (b) (iv) (iii) (i) (ii) (c) (ii) (i) (iv) (iii) (d) (ii) (iii) (iv) (i)

Description : .Match the terms in column I with their description in column II and choose the correct option. Column I Column II A. Dominance (i) Many genes govern a single character B. Co-dominance (ii) In a heterozygous organism only one allele ... (i) (ii) (c) (ii) (i) (iv) (iii) (d) (ii) (iii) (iv) (i)

Last Answer : (d) (ii) (iii) (iv) (i)

Mark the correct option: a) Surface mail items received from any country for delivery in India may be redirected to any place within India. b) First class mail surcharge or un surcharged are eligible for free redirection by air within India c) Surface mail received for delivery in India from any country not applying reduced charges for India may be redirected to another country by the surface mail without any charge for the redirection. d) All of the above are correct

Description : Mark the correct option: a) Surface mail items received from any country for delivery in India may be redirected to any place within India. b) First class mail surcharge or un surcharged are eligible ... by the surface mail without any charge for the redirection. d) All of the above are correct

Last Answer : d) All of the above are correct

Mark the correct option a) The WLA policy can be converted into EA after one year b) The EA policy can be altered and value can be reduced after one year of issue and before one year of maturity c) CWL policy cant be converted into EA policy at the end of the 5 year. d) All the above

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Last Answer : d) All the above

How many of the following liberate `O_(2)` on heating in a dry test tube ? `CaO, Fe_(2)O_(3), Fe_(3)O_(4), FeO, Cr_(2)O_(3), XeF_(4), Al_(2)O_(3), MgO

Description : How many of the following liberate `O_(2)` on heating in a dry test tube ? `CaO, Fe_(2)O_(3), Fe_(3)O_(4), FeO, Cr_(2)O_(3), XeF_(4), Al_(2)O_(3), MgO

Last Answer : How many of the following liberate `O_(2)` on heating in a dry test tube ? `CaO, Fe_(2)O_(3), Fe_(3)O_(4), ... 3), XeF_(4), Al_(2)O_(3), MgO, Na_(2)O`

In the reaction `VO+Fe_(2)O_(3) rarr FeO+V_(2)O_(5)`, the eq.wt. of `V_(2)O_(5)` is equal to its

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Last Answer : In the reaction `VO+Fe_(2)O_(3) rarr FeO+V_(2)O_(5)`, the eq.wt. of `V_(2)O_(5)` is equal to its A. ... wt. B. Mol.wt./8 C. Mol.wt./6 D. None of these

When copper pyrites is roasted in excess of air, a mixture of `CuO + FeO` is formed. `FeO` is present as impurity. This can be removed as slag during

Description : When copper pyrites is roasted in excess of air, a mixture of `CuO + FeO` is formed. `FeO` is present as impurity. This can be removed as slag during

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__________ is used as a catalyst in fat splitting. (A) ZnO (B) Ni (C) V2O5 (D) FeO

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Last Answer : (A) ZnO

Prussian blue is chemically represented by (A) FeO.TiO2 (B) Ca SO4 . 2H2O (C) Fe4 [Fe (CN6 )3 ] (D) AlF3 . 3NaF

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Last Answer : (C) Fe4 [Fe (CN6 )3 ]

Ganister contains maximum percentage of (A) FeO (B) SiO2 (C) MgO

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Last Answer : (B) SiO2

or efficient performance of a blast furnace, the extent of reduction of Wustite (FeO) should be (A) 100% indirect reduction (B) 100% direct reduction (C) 50-60% indirect reduction (D) 30-40% indirect reduction

Description : or efficient performance of a blast furnace, the extent of reduction of Wustite (FeO) should be (A) 100% indirect reduction (B) 100% direct reduction (C) 50-60% indirect reduction (D) 30-40% indirect reduction

Last Answer : (C) 50-60% indirect reduction

or efficient performance of a blast furnace, the extent of reduction of Wustite (FeO) should be (A) 100% indirect reduction (B) 100% direct reduction (C) 50-60% indirect reduction (D) 30-40% indirect reduction

Description : or efficient performance of a blast furnace, the extent of reduction of Wustite (FeO) should be (A) 100% indirect reduction (B) 100% direct reduction (C) 50-60% indirect reduction (D) 30-40% indirect reduction

Last Answer : (C) 50-60% indirect reduction

Which of the following is an acidic constituent of B.F. slag? (A) SiO2 (B) FeO (C) MgO (D) CaO

Description : Which of the following is an acidic constituent of B.F. slag? (A) SiO2 (B) FeO (C) MgO (D) CaO

Last Answer : Option A

9. Which of the following is an acidic constituent of B.F. slag? (A) SiO2 (B) FeO (C) MgO

Description : 9. Which of the following is an acidic constituent of B.F. slag? (A) SiO2 (B) FeO (C) MgO

Last Answer : Option A

Near the top of the blast furnace, iron oxides are reduced to …… by carbon monoxide .

Description : Near the top of the blast furnace, iron oxides are reduced to …… by carbon monoxide .

Last Answer : Near the top of the blast furnace, iron oxides are reduced to …… by carbon monoxide . A. C B. CO C. `CO_(2)` D. `CaCO_(3)`

Free energy, fugacity and activity co-efficient are all affected by change in the temperature. The fugacity co-efficient of a gas at constant pressure ____with the increase of reduced temperature. (A) Decreases (B) Increases (C) Remains constant

Description : Free energy, fugacity and activity co-efficient are all affected by change in the temperature. The fugacity co-efficient of a gas at constant pressure ____with the increase of reduced temperature. (A) Decreases (B) Increases (C) Remains constant

Last Answer : (B) Increases

With increase in reduced temperature, the fugacity co-efficient of a gas at constant reduced pressure (A) Increases (B) Decreases (C) Remain same (D) Decreases linearly

Description : With increase in reduced temperature, the fugacity co-efficient of a gas at constant reduced pressure (A) Increases (B) Decreases (C) Remain same (D) Decreases linearly

Last Answer : (A) Increases

Cupola produces __________ iron. (A) Pig (B) Cast (C) Wrought (D) Carbon free

Description : Cupola produces __________ iron. (A) Pig (B) Cast (C) Wrought (D) Carbon free

Last Answer : (B) Cast

Which of the following has the least value of ultimate tensile strength (UTS)? (A) Medium carbon steel (B) High carbon steel (C) Cast iron (D) Wrought iron Answer: Option C

Description : Which of the following has the least value of ultimate tensile strength (UTS)? (A) Medium carbon steel (B) High carbon steel (C) Cast iron (D) Wrought iron Answer: Option C

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Condensing film co-efficient for steam on horizontal tubes ranges from 5000 to 15000 Kcal/hr.m2 .°C. Condensation of vapor is carried out inside the tube in a shell and tube heat exchanger, when the (A) Higher condensing film co-efficient is desired (B) Condensate is corrosive in nature (C) Lower pressure drop through the exchanger is desired (D) Temperature of the incoming vapor is very high Answer: Option B

Description : Condensing film co-efficient for steam on horizontal tubes ranges from 5000 to 15000 Kcal/hr.m2 .°C. Condensation of vapor is carried out inside the tube in a shell and tube heat ... drop through the exchanger is desired (D) Temperature of the incoming vapor is very high

Last Answer : (B) Supersaturated

Choose the correct statement about theophylline: A. Its use in asthma has declined because of narrow safety margin B. Its dose needs to be reduced in smokers C. It acts by increasing the formation of cAMP D. Its plasma halflife is longer in children compared to that in adults

Description : Choose the correct statement about theophylline: A. Its use in asthma has declined because of narrow safety margin B. Its dose needs to be reduced in smokers C. It acts by increasing the formation of cAMP D. Its plasma halflife is longer in children compared to that in adults

Last Answer : A. Its use in asthma has declined because of narrow safety margin

Increasing carbon dioxide will cause sea ice to reduce in spatial coverage. In turn, the reduced sea ice extent is a (a) Positive feedback on surface temperature because it has a greater albedo than ocean (b) Positive feedback on surface temperature because it has a lower albedo than ocean (c) Positive feedback on surface temperature because sea ice has lower heat ca- pacity than ocean (d) Both B and C are true

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Last Answer :  Positive feedback on surface temperature because it has a greater albedo than ocean

Which of the following statements about the given reaction are correct? 3Fe(s) + 4H2O(g) → Fe3O4 (s) + 4H2 (g) (a) Iron metal is getting oxidized. (b) Water is getting reduced. (c) Water is acting as reducing agent. (d)Water is acting as oxidizing agent. A) (A), (B) & (C) B) (C) & (D) C) (A), (B) & (D) D) (B) & (D)

Description : Which of the following statements about the given reaction are correct? 3Fe(s) + 4H2O(g) → Fe3O4 (s) + 4H2 (g) (a) Iron metal is getting oxidized. (b) Water is getting reduced. (c) Water is acting as reducing agent. (d)Water is acting as ... (B) & (C) B) (C) & (D) C) (A), (B) & (D) D) (B) & (D)

Last Answer : C) (A), (B) & (D)

Choose the correct statement about lactulose: A. It stimulates myenteric neurones to enhance gut peristalsis B. Administered orally it acts as a purgative within 2-4 hours C. It is an osmotic laxative that produces soft but formed stools D. All of the above are correct

Description : Choose the correct statement about lactulose: A. It stimulates myenteric neurones to enhance gut peristalsis B. Administered orally it acts as a purgative within 2-4 hours C. It is an osmotic laxative that produces soft but formed stools D. All of the above are correct

Last Answer : C. It is an osmotic laxative that produces soft but formed stools

Choose the correct statement about moclobemide: A. It is a reversible inhibitor of MAO-A with short duration of action B. Patients taking it need to be cautioned not to consume tyramine rich food C. It is contraindicated in elderly patients D. It produces anticholinergic side effect

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Last Answer : A. It is a reversible inhibitor of MAO-A with short duration of action

Choose the correct statement(s) about ipratropium bromide: A. It preferentially dilates peripheral bronchioles B. It produces additional bronchodilatation when added to nebulized salbutamol C. As metered dose inhaler it is used for terminating asthma attacks D. Both 'B' and 'C'

Description : Choose the correct statement(s) about ipratropium bromide: A. It preferentially dilates peripheral bronchioles B. It produces additional bronchodilatation when added to nebulized salbutamol C. As metered dose inhaler it is used for terminating asthma attacks D. Both 'B' and 'C'

Last Answer : B. It produces additional bronchodilatation when added to nebulized salbutamol

Choose the correct statement about aspirin: A. In an afebrile patient acute overdose of aspirin produces hypothermia B. Aspirin suppresses flushing attending large dose of nicotinic acid C. Aspirin therapy prevents granulomatous lesions and cardiac complications of acute rheumatic fever D. Long term aspirin therapy increases the risk of developing colon cancer

Description : Choose the correct statement about aspirin: A. In an afebrile patient acute overdose of aspirin produces hypothermia B. Aspirin suppresses flushing attending large dose of nicotinic acid C. Aspirin ... acute rheumatic fever D. Long term aspirin therapy increases the risk of developing colon cancer

Last Answer : B. Aspirin suppresses flushing attending large dose of nicotinic acid

Choose the correct option. Globalization, by connecting countries, shall result in -SST 10th

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Last Answer : B - Greater competition among producers. As the producers, from all over the world are competing in similar market arena, this has induced greater competition among them.

Choose the correct option. The relation R = {(1, 1), (2, 2), (3, 3), (1, 2), (2, 3), (1, 3)} on a set A = {1, 2, 3} is -Maths 9th

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Match the column -I with column -II and choose the correct option :

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Match the column-I with Column-II Choose the correct option :

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Identify A,B,C and D and choose correct option regardin their nmber in complete jaw `:-`

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Choose the correct option regarding energy of empty orbitals. `{:(,n,l,m,s),((I),4,0,0,+(1)/(2)),((III),3,1,1,+(1)/(2)):}` ` {:(,n,l,m,s),((II),3,2,0,

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Read the following statements and choose the correct rect option. (A) Only a point source forms a complete umbra. (B) An extended source of light form

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Read the following statements and choose the correct option. (A) Planets are not luminous bodies. (B) The sun is the nearest star to us from which the

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In the given diagram identify A , B , C and D . Respectively and choose the correct option out of 1,2,3, and 4 .

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Complete the given equation and choose the correct option accordingly

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Choose the correct option the code regarding roasting process. (I) It is the process of heating the ore in air in a reverberatory furnace to obtain th

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Read the facts regarding the Revolution of the Liberals in Europe during 1848 and choose the correct option: 1. Abdication of the monarch

Description : Read the facts regarding the Revolution of the Liberals in Europe during 1848 and choose the correct option: 1. Abdication of the monarch

Last Answer : Read the facts regarding the Revolution of the Liberals in Europe during 1848 and choose the correct option: 1. ... (d) Only 1, 2 and 4 are correct.