The earthy impurities present in the ore are called?

The earthy impurities present in the ore
are called?
by

1 Answer

Answer :

Gangue
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Related questions

The earthy impurities present in the mineral are called

Description : The earthy impurities present in the mineral are called

Last Answer : The earthy impurities present in the mineral are called A. Flux B. slag C. gangue D. refractory material

The method of concentrating the ore which makes use of the difference in density between ore and impurities is called?

Description : The method of concentrating the ore which makes use of the difference in density between ore and impurities is called?

Last Answer : levigation

Cost iron is prepared from haematite . In most of the Cases ore needs no concentration ,The ore is roasted to remove the volatile impurities ,During r

Description : Cost iron is prepared from haematite . In most of the Cases ore needs no concentration ,The ore is roasted to remove the volatile impurities ,During r

Last Answer : Cost iron is prepared from haematite . In most of the Cases ore needs no concentration ,The ore is roasted to ... molten slag `Fe_(2)(SiO_(3))_(3)`

Cost iron is prepared from haematite . In most of the Cases ore needs no concentration ,The ore is roasted to remove the volatile impurities ,During r

Description : Cost iron is prepared from haematite . In most of the Cases ore needs no concentration ,The ore is roasted to remove the volatile impurities ,During r

Last Answer : Cost iron is prepared from haematite . In most of the Cases ore needs no concentration ,The ore is roasted to remove ... is A. 10 B. 20 C. 30 D. 40

Cost iron is prepared from haematite . In most of the Cases ore needs no concentration ,The ore is roasted to remove the volatile impurities ,During r

Description : Cost iron is prepared from haematite . In most of the Cases ore needs no concentration ,The ore is roasted to remove the volatile impurities ,During r

Last Answer : Cost iron is prepared from haematite . In most of the Cases ore needs no concentration ,The ore is roasted to remove ... C` C. `FeC_(3)` D. `Fe_(2)C`

Flux addition during smelting of ore is done to (A) Remove impurities/gangue (B) Enhance rate of reaction (C) Accelerate reduction of ore (D) Separate slag from metal

Description : Flux addition during smelting of ore is done to (A) Remove impurities/gangue (B) Enhance rate of reaction (C) Accelerate reduction of ore (D) Separate slag from metal

Last Answer : (A) Remove impurities/gangue

If the ore impurities is (A) Clay, lime stone is used as flux (B) Lime stone, clay is used as flux (C) Quartz, lime stone and argillaceous iron ores are used as flux (D) All the above

Description : If the ore impurities is (A) Clay, lime stone is used as flux (B) Lime stone, clay is used as flux (C) Quartz, lime stone and argillaceous iron ores are used as flux (D) All the above

Last Answer : Answer: Option D

Pick up the correct statement from the following: (A) Roasting is not necessary if iron ore is an oxide (B) Impurities float on the molten iron as slag (C) The slag contains lime about 45% (D) All the above

Description : Pick up the correct statement from the following: (A) Roasting is not necessary if iron ore is an oxide (B) Impurities float on the molten iron as slag (C) The slag contains lime about 45% (D) All the above

Last Answer : Answer: Option D

Pick up the correct statement from the following: (A) In basic Bessemer process, the steel heats the converter (B) In open-hearth process, the furnace heats the steel (C) In Siemens process, the impurities of pig iron are oxidised by the oxygen of the ore (D) All the above

Description : Pick up the correct statement from the following: (A) In basic Bessemer process, the steel heats the converter (B) In open-hearth process, the furnace heats the steel (C) In Siemens process, the impurities of pig iron are oxidised by the oxygen of the ore (D) All the above

Last Answer : Answer: Option D

The correct sequence of steps involved in extraction of metal from its ore is a) removal of impurities, purify metal, reduction of ore b) purify metal, removal of impurities, reduction of metal ore . c) concentration of ore , refining of metal , reduction d) removal of impurities from ore , reduction of ore , refining of metal

Description : The correct sequence of steps involved in extraction of metal from its ore is a) removal of impurities, purify metal, reduction of ore b) purify metal, removal of impurities, reduction of metal ore . c ... of metal , reduction d) removal of impurities from ore , reduction of ore , refining of metal

Last Answer : d) removal of impurities from ore , reduction of ore , refining of metal

Which of the following refers to an easily melted product of the reaction between the flux and the impurities of an ore? w) slag x) slurry y) slug z) none of the above

Description : Which of the following refers to an easily melted product of the reaction between the flux and the impurities of an ore? w) slag x) slurry y) slug z) none of the above

Last Answer : ANSWER: W -- SLAG

Do you like the earthy taste of mushrooms and beets?

Description : Do you like the earthy taste of mushrooms and beets?

Last Answer : Mushrooms yes, beets no.

I welcome the day with a show of light, I steathily came here in the night. I bathe the earthy stuff at dawn, But by the noon, alas! I'm gone.What am I? -Riddles

Description : I welcome the day with a show of light, I steathily came here in the night. I bathe the earthy stuff at dawn, But by the noon, alas! I'm gone.What am I? -Riddles

Last Answer : The morning dew!

Who wrote the earthy cry ?

Description : Who wrote the earthy cry ?

Last Answer : Written by Jasim Uddin.

What do you call a luster that is dull and earthy?

Description : What do you call a luster that is dull and earthy?

Last Answer : Feel Free to Answer

Black cotton soils are a) Heavy clay soils varying from clay to Loam, with clay content of 40 to 50% formed by decomposition of rocks by long continued weathering* b) Compacted and laminated clays c) Soils containing carbon of coal underneath d) Dark brown earthy materials formed due to partial or complete decomposition of vegetable matter

Description : Black cotton soils are a) Heavy clay soils varying from clay to Loam, with clay content of 40 to 50% formed by decomposition of rocks by long continued weathering* b) Compacted and ... underneath d) Dark brown earthy materials formed due to partial or complete decomposition of vegetable matter

Last Answer : a) Heavy clay soils varying from clay to Loam, with clay content of 40 to 50% formed by decomposition of rocks by long continued weathering*

Name the impurities present in cast iron. How can these impurities be removed?

Description : Name the impurities present in cast iron. How can these impurities be removed?

Last Answer : Cast iron contains sulphur, phosphorous, silicon and carbon. The impurities present in the blast furnace can be removed by using Bessemer converter, open hearth process or electric furnace.

Common impurities present in bauxite are…..

Description : Common impurities present in bauxite are…..

Last Answer : Common impurities present in bauxite are….. A. CuO B. ZnO C. `Fe_(2)O_(3)` D. `SiO_(2)`

Oilish impurities present the effluent discharged from the electroplating industry is normally not removed by (A) Chemical coagulation (B) Floatation & skimming (C) Centrifugation (D) Ultra filtration

Description : Oilish impurities present the effluent discharged from the electroplating industry is normally not removed by (A) Chemical coagulation (B) Floatation & skimming (C) Centrifugation (D) Ultra filtration

Last Answer : (A) Chemical coagulation

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)

Addition of suitable impurities into semiconductor, is called – (1) Doping (2) Mixing (3) Forming (4) Diluting

Description : Addition of suitable impurities into semiconductor, is called – (1) Doping (2) Mixing (3) Forming (4) Diluting

Last Answer : (1) Doping Explanation: In semiconductor production, doping refers to the introduction of impurities into an extremely pure intrinsic semiconductor for the purpose of modulating its electrical properties. ... type of semiconductor and the properties that it needs to have for its intended purpose.

Very fine suspended and colloidal impurities are removed from water by a process called (A) Sedimentation (B) Coagulation (C) Disinfection (D) Softening

Description : Very fine suspended and colloidal impurities are removed from water by a process called (A) Sedimentation (B) Coagulation (C) Disinfection (D) Softening

Last Answer : (B) Coagulation

Impurities in metal ores are called: w) flux x) gangue (pron: gang) y) slag z) sediments

Description : Impurities in metal ores are called: w) flux x) gangue (pron: gang) y) slag z) sediments

Last Answer : ANSWER: X -- GANGUE

Addition of suitable impurities into semiconductor, is called (1) Doping (2) Mixing (3) Forming (4) Diluting

Description : Addition of suitable impurities into semiconductor, is called (1) Doping (2) Mixing (3) Forming (4) Diluting

Last Answer : Doping

The impurity present in the ore?

Description : The impurity present in the ore?

Last Answer : Gangue

Denatured alcohol 1. Is an impure form of ethanol 2. Is unfit for drinking as it contains poisonous substances 3. Contains impurities 4. Is very unsafe to consume The correct answers are: (a) 1, 2 and 4 (b) 1, 2, 3 and 4 (c) 2, 3 and 4 (d) 1, 2 and 3

Description : Denatured alcohol 1. Is an impure form of ethanol 2. Is unfit for drinking as it contains poisonous substances 3. Contains impurities 4. Is very unsafe to consume The correct answers are: (a) 1, 2 and 4 (b) 1, 2, 3 and 4 (c) 2, 3 and 4 (d) 1, 2 and 3

Last Answer : Ans:(b)

What are some of the common impurities in water?

Description : What are some of the common impurities in water?

Last Answer : Water contains many impurities such as mud, sand, Bacteria, mineral salt and remains of dead plant and animals.

Carnalite is present in sea water mainly. It is the main ore of magnesium which has the chemicakl fromula `MgCl_(2).KCl.xH_(2)O` . The value of x is .

Description : Carnalite is present in sea water mainly. It is the main ore of magnesium which has the chemicakl fromula `MgCl_(2).KCl.xH_(2)O` . The value of x is .

Last Answer : Carnalite is present in sea water mainly. It is the main ore of magnesium which has the chemicakl fromula `MgCl_(2).KCl.xH_(2)O` . The value of x is .

The magnetic impurity present in cassiterite ore is

Description : The magnetic impurity present in cassiterite ore is

Last Answer : The magnetic impurity present in cassiterite ore is A. Silica B. Wolframite C. `SnO_(2)` D. Clay

Percentage of natural uranium present in uranium ore found in Jadugoda (Jharkhand, India) is (A) 0.1 (B) 1 (C) 2 (D) 12

Description : Percentage of natural uranium present in uranium ore found in Jadugoda (Jharkhand, India) is (A) 0.1 (B) 1 (C) 2 (D) 12

Last Answer : (A) 0.1

Which of the following oxides is not present in hematite iron ore? (A) Titanium oxide (B) Calcium oxide (C) Cobalt oxide (D) Manganese oxide

Description : Which of the following oxides is not present in hematite iron ore? (A) Titanium oxide (B) Calcium oxide (C) Cobalt oxide (D) Manganese oxide

Last Answer : (C) Cobalt oxide

. A mineral is termed as 'ore', if (A) A metal can be economically extracted from it (B) It contains ≥ 40% metal (C) The metal present in it is costly (D) All (A), (B) and (C)

Description : . A mineral is termed as 'ore', if (A) A metal can be economically extracted from it (B) It contains ≥ 40% metal (C) The metal present in it is costly (D) All (A), (B) and (C)

Last Answer : (A) A metal can be economically extracted from it

Which of the following if present in iron ore, enhances its value? (A) Alumina (B) Alkali oxide (C) Lime & Magnesia (D) None of these

Description : Which of the following if present in iron ore, enhances its value? (A) Alumina (B) Alkali oxide (C) Lime & Magnesia (D) None of these

Last Answer : C) Lime & Magnesia

n-propylamine containing no secondary and tertiary amines as impurities is prepared by

Description : n-propylamine containing no secondary and tertiary amines as impurities is prepared by

Last Answer : n-propylamine containing no secondary and tertiary amines as impurities is prepared by A. Hoffmann ... n-propylchloride with ammonia D. none of these

Statement-I : Lead, tin and bismuth are purified by liquation method. Statement-II : Lead, tin and bismuth have low m.p as compared to impurities.

Description : Statement-I : Lead, tin and bismuth are purified by liquation method. Statement-II : Lead, tin and bismuth have low m.p as compared to impurities.

Last Answer : Statement-I : Lead, tin and bismuth are purified by liquation method. Statement-II : Lead, tin and bismuth have low m.p as compared to impurities.

Assertion: `Ag` and `Au` are extracted by leaching the ores with a dilute solution of `NaCN`. Reason: Impurities associated with these ores dissolve i

Description : Assertion: `Ag` and `Au` are extracted by leaching the ores with a dilute solution of `NaCN`. Reason: Impurities associated with these ores dissolve i

Last Answer : Assertion: `Ag` and `Au` are extracted by leaching the ores with a dilute solution of `NaCN`. ... . Statement-1 is false but Statement -2 is true

Assertion: Wrough iron is prepared from cast iron by oxidising impurities in a reverberatory furnace lined with haematite. Reason: Haematite oxidises

Description : Assertion: Wrough iron is prepared from cast iron by oxidising impurities in a reverberatory furnace lined with haematite. Reason: Haematite oxidises

Last Answer : Assertion: Wrough iron is prepared from cast iron by oxidising impurities in a reverberatory furnace lined ... -1 is false but Statement -2 is true

Metals of high purity are obtained by zone refining. Impurities are more soluble in melt in pure metal.

Description : Metals of high purity are obtained by zone refining. Impurities are more soluble in melt in pure metal.

Last Answer : Metals of high purity are obtained by zone refining. Impurities are more soluble in melt in pure ... Statement-1 is false but Statement -2 is true

Impurities in the zinc spelter are

Description : Impurities in the zinc spelter are

Last Answer : Impurities in the zinc spelter are A. Ag and Au B. Cd and Pd C. Cd and Pb D. Cd,As and Au

What is a substance used to make free of impurities which rhymes with preen?

Description : What is a substance used to make free of impurities which rhymes with preen?

Last Answer : chlorine

What impurities are removed by a water filtration system?

Description : What impurities are removed by a water filtration system?

Last Answer : Water filtration system can remove contaminants from the water. They also work to remove unwanted minerals from the water and improve clarity.

(4) sodium chloride contains hygroscopic impurities like magnesium chloride Explanation: Table salt is refined salt, which contains about 97 to 99 percent sodium chloride. It usually contains substances that make it freeflowing (anticaking agents) such as sodium aluminosilicate or magnesium carbonate. Because of Hygroscopic nature of salt it become wet in rainy season as the salt absorbs moisture from environment.

Description : (4) sodium chloride contains hygroscopic impurities like magnesium chloride Explanation: Table salt is refined salt, which contains about 97 to 99 percent sodium chloride. It usually contains substances that ... of salt it become wet in rainy season as the salt absorbs moisture from environment.

Last Answer : Which of the following could be used as fuel in propellant or rockets? (1) Liquid Hydrogen + Liquid Nitrogen (2) Liquid Oxygen + Liquid Argon (3) Liquid Nitrogen + Liquid Oxygen (4) Liquid Hydrogen + Liquid Oxygen

Potassium Permanganate is used for purifying drinking water, because ________. (1) It is a reducing agent (2) It is an oxidising agent (3) It is a sterilising agent (4) It dissolves the impurities of water

Description : Potassium Permanganate is used for purifying drinking water, because ________. (1) It is a reducing agent (2) It is an oxidising agent (3) It is a sterilising agent (4) It dissolves the impurities of water

Last Answer : (2) It is an oxidising agent Explanation: Potassium permanganate is a point-of-entry water treatment method that oxidizes dissolved iron, mancianese, and hydrogen sulfide into solid particles that are filtered ... to control iron bacteria growth in wells. It is an oxidant, but a poor disinfectant.

The degree of dissociation of an electrolyte depends on - (1) dilution (2) impurities (3) atmospheric pressure (4) method of dissolution

Description : The degree of dissociation of an electrolyte depends on - (1) dilution (2) impurities (3) atmospheric pressure (4) method of dissolution

Last Answer : (1) dilution Explanation: The extent to which an electrolyte dissociates into ions is known as degree of dissociation or ionization and depends upon the following factors: (1) Nature of the electrolyte, (2) Temperature, (3) Dilution, (4) nature of the solvent, and (e) presence of other ions.

Commercial nitric acid is coloured because it contains dissolved – (1) Oxygen (2) Nitrous oxide (3) Nitrogen dioxide (4) Coloured impurities

Description : Commercial nitric acid is coloured because it contains dissolved – (1) Oxygen (2) Nitrous oxide (3) Nitrogen dioxide (4) Coloured impurities

Last Answer : (3) Nitrogen dioxide Explanation: Commercial nitric acid has a brown colour due to dissolved NO2. The procedure of bubbling dry air through warm commercial nitric acid, is to drive away the dissolved nitrogen dioxide so that the acid becomes colourless.

Potassium Permanganate is used for purifying drinking water, because - (1) it dissolves the impurities of water (2) It is a sterilizing agent (3) It is an oxidising agent (4) It is a reducing agent

Description : Potassium Permanganate is used for purifying drinking water, because - (1) it dissolves the impurities of water (2) It is a sterilizing agent (3) It is an oxidising agent (4) It is a reducing agent

Last Answer : (3) It is an oxidising agent Explanation: Potassium permanganate is a point-of-entry treatment method that oxidizes dissolved iron, manganese, and hydrogen sulfide into solid particles that are filtered out of the water.

The blue colour of water in the sea is due to – (1) absorption of other colours except blue by water molecules (2) scattering of blue light by water molecules (3) reflection of blue light by impurities in sea water (4) reflection of blue sky by sea water

Description : The blue colour of water in the sea is due to – (1) absorption of other colours except blue by water molecules (2) scattering of blue light by water molecules (3) reflection of blue light by impurities in sea water (4) reflection of blue sky by sea water

Last Answer : (1) absorption of other colours except blue by water molecules Explanation: Almost all sunlight that enters the ocean is absorbed, except very close to the coast. The red, yellow, and green ... to the absorption and scattering of light. The blue wavelengths of light are scattered, similar to the

When pressure is increased the melting point of ice – (1) increases (2) does not change (3) decreases (4) depends on the impurities in the ice

Description : When pressure is increased the melting point of ice – (1) increases (2) does not change (3) decreases (4) depends on the impurities in the ice

Last Answer : (3) decreases Explanation: In this case. if we increase the pressure on the ice the ice-water system wants to try to lower it again. It can do that by making itself fit into a ... the melting point of ice decreases because of the inversal relationship between the pressure and melting point of ice.

Flux reacts with the impurities to form fusible material. which is known as which name?

Description : Flux reacts with the impurities to form fusible material. which is known as which name?

Last Answer : Slag

Which impurities form hard scale and which impurities soft scale ?

Description : Which impurities form hard scale and which impurities soft scale ?

Last Answer : Sulphates and chlorides of lime and magnesium form hard scale, and carbonates of lime and magnesium form soft scale.