In which of the following states maximum iron ore is found ? (1) FeCO3 (2) Fe2O3 (3) Fe3O4 (4) FeS2

1 Answer

Answer :

Fe2O3

Related questions

Description : Which of the following is the chemical formula for calcite? w) CaCO3 x) CaMgSO4 y) FeCO3 z) FeS2

Last Answer : ANSWER: W -- CaCO3

Description : What the answer for FeS2 plus O2 - and get Fe2O3 plus SO2?

Last Answer : FeS + 7 O2 = 2 Fe2O3 + 4 SO2

Description : What the answer for FeS2 plus O2 - and get Fe2O3 plus SO2?

Last Answer : FeS + 7 O2 = 2 Fe2O3 + 4 SO2

Description : Pick up the correct statement from the following: (A) Blisters in the finished wrought iron, are caused due to the reaction between oxide of iron and carbon (B) The edges of a finished wrought iron ... shortage (C) Pig iron (charcoal) is manufactured from magnetic ore (Fe3O4) (D) All the above

Last Answer : Answer: Option D

Description : Tick out the incorrect match: List I (Ore) List II (Mineral) a) Dolomite- MgCO3 b) Gibbsite3- H2O c) Gypsum2- H2O d) Geothite- Fe2O3

Last Answer : d) Geothite- Fe2O3

Description : In which of the following states maximum iron ore is found? (1) FeCO₃ (2) Fe₂O₃ (3) Fe₃O₄ (4) FeS₂

Last Answer : (2) Fe₂O₃ Explanation: Iron ores are rocks and minerals from which metallic iron can be economically extracted. The ores are usually rich in iron oxides and vary in colour from dark grey, bright yellow, or deep purple to rusty red.

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)

Description : Commercial scale production of hydrogen from iron-steam reaction represented by, 3Fe + 3H2O = Fe3O4 + 4H2 , is not practised, as it is (A) A slow reaction (B) A discontinuous reaction (requiring regeneration of ... in development stage (by employing fluidised bed technique) (D) All (A), (B) and (C)

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

Description : During smelting process, the combination of fuel in the furnace (A) Forms carbon dioxide (B) Carbon dioxide with carbon forms carbon mono-oxide (C) Carbon mono-oxide reacts with Fe2O3 to form iron and liberates CO2 (D) All the above

Last Answer : Answer: Option D

Description : Explain the fallacy of oxidation state in Fe3O4?

Last Answer : Ans. As per rule, the oxidation state of Fe comes out to be 8/3 Which is not possible. So,here the oxidation state of Fe is +2 & +3since it is mixed oxide of FeO and Fe2O3

Description : What happens when ferrimagnetic Fe3O4 is heated to 850 K and why?

Last Answer : Fe3O4 on heating to 850 K becomes paramagnetic. This is due to greater alignment of domains in one direction on heating.

Description : At which temperature direct reduction of Fe2O3 by carbon is possible ?

Last Answer : Ans. Above 1123 K, carbon can reduce Fe2O3 

Description : Pyrite (FeS2 ) is used to reclaim

Last Answer : Ans. Saline soils

Description : Name two states in India where Iron-ore is found on a large scale. -SST 10th

Last Answer : Orissa and Jharkhand.

Description : How many grams of O2 are required to produce 100.0 g of Fe2O3?

Last Answer : Need answer

Description : Cement mainly contains (A) CaO, SiO2 , Al2O3 (B) MgO, SiO2 , K2O (C) Al2O3 , MgO, Fe2O3 (D) CaO, MgO, K2O

Last Answer : (A) CaO, SiO2 , Al2O3

Description : Portland cement consists mainly of (A) CaO & SiO2 (B) SiO2 & Al2O3 (C) CaO & Al2O3 (D) CaO & Fe2O3

Last Answer : (A) CaO & SiO2

Description : Which of the following is the second major component of cement? (A) Al2O3 (B) SiO2 (C) CaO (D) Fe2O3

Last Answer : (B) SiO2

Description : Which catalyst is used in the manufacture of ethylene oxide by oxidation of ethylene? (A) AgO (B) Al2O3 (C) ZnCl2 (D) Fe2O3

Last Answer : (A) AgO

Description : (a) What grade of iron-ore is mostly mined in India ? Name two leading iron-ore producing states. -Geography

Last Answer : (a) Hematite and Magnetite states grade of iron ore is mostly found in India. Two leading iron ore producing states are Orissa and Jharkhand. (b) Lignite is a poor quality coal which has 60% of carbon ... . It is used as raw material in cement industry and 2. As flux in iron and steel industry.

Description : The commodity which accounts for the maximum volume of goods transported by the railways in India is (a) iron and steel (b) coal (c) mineral oil (d) metallic ores (other than iron ore)

Last Answer : Ans: (b)

Description : Maximum use of petroleum coke is in (A) Adsorption refining operation (B) Fuel gas manufacture (C) Carbon electrode manufacture (D) Iron ore reduction

Last Answer : (C) Carbon electrode manufacture

Description : Which of the following contributes maximum as main source of sulphur in the blast furnace charge? (A) Sinter (B) Coke (C) Iron ore (D) Limestone

Last Answer : Coke

Description : Give the names of four important types of iron ore found in India -Geography

Last Answer : Magnetite, Hematite, Limonite and Siderite.

Description : Name the different types of iron ore found in India. Which is the best quality iron ore ? -Geography

Last Answer : Different types of iron ore found in India are: (i) Hematite (ii) Magnetite (iii) Limonite Magnetite is the best quality of iron as it contains more than 70% of iron.

Description : (a) (i) Name the different types of iron ore found in India. -Geography

Last Answer : (a) (i) Different types of iron ore found in India are: 1. Anthracite 2. Bituminous 3. Lignite 4. Peat (b) An important coal producing state is Jharkhand. Coalmine—Bokaro (c) Answer has not given due to out of present syllabus. (d) Two uses of Limestone: Cement and Iron and Steel.

Description : What types of iron ore are found in India? -SST 10th

Last Answer : India is rich in good quality iron ores. .Magnetite: It is the finest iron ore with a very high content of iron up to 70 per cent. It has excellent magnetic qualities and is valuable in the electrical ... of the quantity used but has a slightly lower iron content than magnetite, i.e., 50 per cent.

Description : Name any three major iron ore belts found in India. Write main feature of each. -SST 10th

Last Answer : (i) Orissa - Jharkhand belt with sufficient (25%) deposits of high grade haematite ore. (ii) Bellary - Chitraduraga - Chikmaglur - Tumkur belt possess 26 percent of the total iron ore of ... - Baster - Chandrapur belt lies in Chhatisgarh and Maharashtra, consisting of very high grade haematite ore.

Description : Which of the following minerals are found in a natural way in the State of Chhattisgarh ? 1. Bauxite 2. Dolomite 3. Iron ore 4. Tin Select the correct answer using the code given below : [IAS 2008] (a) 1, 2 and 3 only (b) 1 and 3 only (c) 2 and 4 only (d) 1, 2, 3 and 4

Last Answer : Ans: (d)

Description : The cost producing iron in India is considerably lower than in other countries because of (1) low wage of miners (2) large supply of iron ore (3) large supply of coal (4) coal and iron ore are found in the same area

Last Answer : (4) coal and iron ore are found in the same area Explanation: Brazil, India, South Africa and China are highly competitive steel production locations. Brazil has vast reserves of high quality iron ... Bengal, Bihar, Orissa, and Madhya Pradesh, has been the natural nerve-centre of this industry.

Description : Which of the following is an iron ore? (1) Bauxite (2) Magnetite (3) Lignite (4) Nitrite

Last Answer : (2) Magnetite Explanation: Magnetite is a 'mineral, one of the two common naturally occurring oxides of Iron. It is the most magnetic of all the naturally occurring minerals on Earth.

Description : The manufacture of iron from iron ore involves the process of – (1) oxidation (2) reduction (3) fractional distillation (4) electrolysis

Last Answer : (2) reduction Explanation: The manufacture of iron ore involves the process of reduction. Important ores of iron : Haematite, Magnetite.

Description : The iron ore which contains 72% of iron is – (1) Magnetite (2) Limonite (3) Haematite (4) Siderite

Last Answer : (1) Magnetite Explanation: Iron (Fe) is a metallic element and composes about 5% of the Earth's crust. When pure it is a dark, silvery-gray metal. It is a very reactive element ... alloy. Iron-nickel meteorites are believed to represent the earliest material formed at the beginning of the universe.

Description : At a site, low grade copper ores are available and zinc and iron seraps are also available. Which of the two seraps will be more suitable for reducing the leached copper ore and why ?

Last Answer : Ans. : The E0 value for the redox couple Zn2+/ Zn(-0.76V) is more negative than that of Fe2+/ Fe(- 0.44) redox couple. Therefore, Zinc is more reactive than iron and hence reduction will ... Zinc seraps are used, But Zinc is a costier metal than iron so using iron scraps would be more economical.

Description : Which of the following materials are used in the manufacture of pig iron from iron ore? w) Limestone and carbon x) Calcium oxide and oxygen y) Chromium and nickel z) Oxygen and sulfur dioxide

Last Answer : ANSWER: W -- LIMESTONE AND CARBON

Description : The manufacture of iron from iron ore involves the process of (1) oxidation (2) reduction (3) fractional distillation (4) electrolysis

Last Answer : reduction

Description : Which of the following is an iron ore ? (1) Bauxite (2) Magnetite (3) Lignite (4) Nitrite

Last Answer : Magnetite

Description : The iron ore which contains 72% of iron is : (1) Magnetite (2) Limonite (3) Haematite (4) Siderite

Last Answer : Magnetite

Description : Why do iron ore mines first stack the ore with stackers and then reclaim it via reclaimers to transfer it to export conveyors?

Last Answer : Stacking and reclaiming allow mines to create stockpiles of ore between stages of the operation. These stockpiles act as buffers that insulate the various stages from uneven flows upstream and downstream. ... the flow by creating reserves along the way that can be expanded or depleted as necessary.

Description : What are the major iron ore belts in India? -Geography

Last Answer : Orissa Jharkhand Belt: Badampahar mines in the Mayurbhanj and Kendujhar districts of Orissa have high grade hematite ore. Additionally, hematite iron ore is mined in Gua and Noamundi in Singhbhum district ... ores in these mines are not of very high quality. They are exported through Marmagao port.

Description : (i) What is the significance of the coal deposits of Chhattisgarh ? (ii) Which country import the iron ore deposits of Chhattisgarh ? -Geography

Last Answer : (i) They are used in the iron and steel industries of Eastern India and also a major item of export. (ii) China.

Description : Where do the following iron and steel plants get their supply of iron ore from? -Geography

Last Answer : 1. Durg district of Chhattisgarh 2. Bailadila

Description : (a) 1. Name the private sector iron and steel plant of India. [2] 2. From where does it get its supply of: 1. Iron ore 2. Manganese 3. Coal? -Geography

Last Answer : 1. Tata Iron and Steel Industry, Jamshedpur. 2. 1. Iron Ore: Singhbhum, Mayurbhanj. 2. Manganese: Noamundi. 3. Coal: Jharia.

Description : State the most important use of the following : (i) Iron ore (ii) Bauxite -Geography

Last Answer : Most important use of: (i) Iron ore : In the production of steel. (ii) Bauxite: In the production of aluminium.

Description : (i) Name two varieties of iron ore used in industry. -Geography

Last Answer : (i) Haematite and Magnetite (ii) Low grade iron ore is used in mini steel plants.

Description : With reference to the Bokaro Steel Plant, from where does it get its (i) coal (ii) iron ore (iii) water supply ? -Geography

Last Answer : (i) Coal from Bokaro and Jharia coal fields. (ii) Iron ore from Bonaigarh, Kiriburu and Noamundi in Orissa. (iii) Water supply from River Damodar.

Description : (i) Mention two characteristics of a mini steel plant. (ii) From where does the integrated steel plant at Jamshedpur get its iron ore and coal ? -Geography

Last Answer : (i) Two characteristics of a mini steel plant are : 1. They use cheaply available scrap iron. 2. They use electric furnaces therefore cause no pollution. (ii) Jamshedpur plant get its iron ore from Singhbhum and Mayurbhanj. It get its coal from Jharia and Raniganj.

Description : Name any two iron-ore exporting ports of India. -Geography

Last Answer : The two ports exporting iron in India are the Marmagao port (Goa) and New Mangalore port. Marmagao port exports about fifty per cent of iron ore export goods. New Mangalore Port in Karnataka caters to the export of iron ore concentrates from Kudremukh mines.

Description : What are the main qualities of iron ore deposit in India? -Geography

Last Answer : The rocks and minerals from which metallic iron can be economically extracted is called iron ore. This mineral is used to make pig iron which in turn is used to make steel making it the ... and time required in the formation of minerals have led to this uneven distribution of minerals in India.

Description : Processing of which minerals release huge amount of dust in the atmosphere? 1 a) Sandstone b) Iron ore c) Limestone d) Bauxite 15. -Geography

Last Answer : C) Limestone