Generally sulphide ores are concentrated by following process

Generally sulphide ores are concentrated by following process
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Generally sulphide ores are concentrated by following process A. Hand picking B. Washing with water C. Leaching D. Froth floatation
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Assertion : Sulphide ores are concentrated by Froth Floatation method. Reason : Cresols stabilise the froth in Froth Floatation method

Description : Assertion : Sulphide ores are concentrated by Froth Floatation method. Reason : Cresols stabilise the froth in Froth Floatation method

Last Answer : Assertion : Sulphide ores are concentrated by Froth Floatation method. Reason : Cresols stabilise the froth in Froth Floatation method

Assertion : Froth flatation process is used to concentrate sulphide ores. Reason : There is a difference in the nature of wettibility of different ore

Description : Assertion : Froth flatation process is used to concentrate sulphide ores. Reason : There is a difference in the nature of wettibility of different ore

Last Answer : Assertion : Froth flatation process is used to concentrate sulphide ores. Reason : There is a difference ... -1 is false but Statement -2 is true

The process of purifying Sulphide ores?

Description : The process of purifying Sulphide ores?

Last Answer : Froth Flotation process

Amongst the various ores of a metal (M) (sulphide, carbonates, oxides, hydrated or hydroxides) two ores [X] and [Y] show the following reactivity. (i)

Description : Amongst the various ores of a metal (M) (sulphide, carbonates, oxides, hydrated or hydroxides) two ores [X] and [Y] show the following reactivity. (i)

Last Answer : Amongst the various ores of a metal (M) (sulphide, carbonates, oxides, hydrated or hydroxides) ... and hydroxide ores D. Carbonate and oxide ores

Statement-1: Auto reduction of ores is used for cinnabar, copper glance and Galena ores Statement-2:The sulphide ores of these metals react with their

Description : Statement-1: Auto reduction of ores is used for cinnabar, copper glance and Galena ores Statement-2:The sulphide ores of these metals react with their

Last Answer : Statement-1: Auto reduction of ores is used for cinnabar, copper glance and Galena ores Statement-2: ... Statement-1 is false but Statement -2 is true

Which of the following faction is of no significance for roasting sulphide ores to the oxide and not subjecting the sulphide ores in carbon reduction

Description : Which of the following faction is of no significance for roasting sulphide ores to the oxide and not subjecting the sulphide ores in carbon reduction

Last Answer : Which of the following faction is of no significance for roasting sulphide ores to the oxide and ... are thermodynamically more stable than `CS_(2)`

The method used for the enrichment of sulphide ores of copper is

Description : The method used for the enrichment of sulphide ores of copper is

Last Answer : The method used for the enrichment of sulphide ores of copper is A. Mangetic Separation B. Froth floatation process C. Electro refining D. Smelting

Which of the following set of elements mostly occur as sulphide ores.

Description : Which of the following set of elements mostly occur as sulphide ores.

Last Answer : Which of the following set of elements mostly occur as sulphide ores. A. Zn, Cu,Na B. Zn, Cu, Pb C. Fe, Al, Ti D. Cu, Ag, Au

Froth floatation is the most suitable for treating (A) Iron ores (B) Sulphide ores (C) Quartzite (D) None of these

Description : Froth floatation is the most suitable for treating (A) Iron ores (B) Sulphide ores (C) Quartzite (D) None of these

Last Answer : (B) Sulphide ores

There is practically no alternative/competitor to __________ in the beneficiation treatment of sulphide ores. (A) Classification (B) Tabling (C) Jigging (D) Froth floatation

Description : There is practically no alternative/competitor to __________ in the beneficiation treatment of sulphide ores. (A) Classification (B) Tabling (C) Jigging (D) Froth floatation

Last Answer : (D) Froth floatation

Unreacted core model' represents the reaction involving (A) Combustion of coal particles (B) Roasting of sulphide ores (C) Manufacture of carbon disulphide from elements (D) None of these

Description : Unreacted core model' represents the reaction involving (A) Combustion of coal particles (B) Roasting of sulphide ores (C) Manufacture of carbon disulphide from elements (D) None of these

Last Answer : (B) Roasting of sulphide ores

Concentration of sulphide ores is done usually by (A) Roasting (B) Smelting (C) Froth floatation (D) Electromagnetic separation

Description : Concentration of sulphide ores is done usually by (A) Roasting (B) Smelting (C) Froth floatation (D) Electromagnetic separation

Last Answer : (C) Froth floatation

Which one of the following ores is best concentrated by froth flotation method:

Description : Which one of the following ores is best concentrated by froth flotation method:

Last Answer : Which one of the following ores is best concentrated by froth flotation method: A. magnetite B. cassiterite C. galena D. malachite.

Which one of the following ores is best concentrated by froth flotation method:

Description : Which one of the following ores is best concentrated by froth flotation method:

Last Answer : Which one of the following ores is best concentrated by froth flotation method: A. KCN B. NaCN C. Sodium ethyl Xanthalate D. Copper sulphate

Which of the following ores are concentrated by froth floatation?

Description : Which of the following ores are concentrated by froth floatation?

Last Answer : Which of the following ores are concentrated by froth floatation? A. haematite B. Galena C. Copper pyrites D. Magnetite

Statement -1 : Ores are generally converted into oxides , prior to reduction . Statement- 2 : Metal oxides can be easily reduced .

Description : Statement -1 : Ores are generally converted into oxides , prior to reduction . Statement- 2 : Metal oxides can be easily reduced .

Last Answer : Statement -1 : Ores are generally converted into oxides , prior to reduction . Statement- 2 : Metal oxides ... -1 : is false , statement-2 : is true

Stamp mills are generally used for crushing (A) Iron ores (B) Gold ores (C) Talc (D) Diamond

Description : Stamp mills are generally used for crushing (A) Iron ores (B) Gold ores (C) Talc (D) Diamond

Last Answer : (B) Gold ores

In sewers the gas generally found, is A. Hydrogen sulphide (H2S) B. Carbon dioxide (CO2) C. Methane (CH4) D. All the above

Description : In sewers the gas generally found, is A. Hydrogen sulphide (H2S) B. Carbon dioxide (CO2) C. Methane (CH4) D. All the above

Last Answer : ANS: D

In extraction of metal how many of the following ores calcination process is involved . (i) Dolomite (ii) Malachite (iii) Calcite (iv) Copper pyrities

Description : In extraction of metal how many of the following ores calcination process is involved . (i) Dolomite (ii) Malachite (iii) Calcite (iv) Copper pyrities

Last Answer : In extraction of metal how many of the following ores calcination process is involved . (i) Dolomite ... Siderite (viii) Iron pyrite (ix) Ar gentite

To which of the following ores , calcination process is not applicable

Description : To which of the following ores , calcination process is not applicable

Last Answer : To which of the following ores , calcination process is not applicable A. Zns B. `Al_(2)O_(3)2H_(2)O` C. `CuCO_(3).Cu(OH)_(2)` D. `CaCO_(3)`

For the metallurgical process of which of the ores calcined ore can be reduced by carbon?

Description : For the metallurgical process of which of the ores calcined ore can be reduced by carbon?

Last Answer : For the metallurgical process of which of the ores calcined ore can be reduced by carbon? A. haematite B. Calamine C. Iron pyrites D. Sphalerite

The process of extraction of metals from their ores; and then refining them for use is known as?

Description : The process of extraction of metals from their ores; and then refining them for use is known as?

Last Answer : metallurgy

The study of metals and the overall process by which metals are extracted from its ores are called?

Description : The study of metals and the overall process by which metals are extracted from its ores are called?

Last Answer : Metallurgy

Which of the following is the primary reason for adding calcium carbonate to the reduction process of iron oxide ores ? The calcium carbonate: w) acts as an oxidizing agent x) removes silicate waste products y) acts as a reducing agent z) removes sulfur waste products

Description : Which of the following is the primary reason for adding calcium carbonate to the reduction process of iron oxide ores ? The calcium carbonate: w) acts as an oxidizing agent x) removes silicate waste products y) acts as a reducing agent z) removes sulfur waste products

Last Answer : ANSWER: X -- REMOVES SILICATE WASTE PRODUCTS

Multiple effect evaporation is generally recommended, when the (A) Large scale evaporation of liquor is needed (B) Corrosive liquids are to be concentrated

Description : Multiple effect evaporation is generally recommended, when the (A) Large scale evaporation of liquor is needed (B) Corrosive liquids are to be concentrated

Last Answer : (A) Large scale evaporation of liquor is needed

The nurse recognizes which of the following signs as typical of the patient in shock? a) Rapid, weak, thready pulse Pulse increases as the body tries to compensate. b) Flushed face Pallor is an indicator of shock. c) Warm, dry skin Skin is generally cool and moist in shock. d) Increased urine output Usually, a low blood pressure and concentrated urine are observed in the patient in shock.

Description : The nurse recognizes which of the following signs as typical of the patient in shock? a) Rapid, weak, thready pulse Pulse increases as the body tries to compensate. b) Flushed face Pallor is ... urine output Usually, a low blood pressure and concentrated urine are observed in the patient in shock.

Last Answer : a) Rapid, weak, thready pulse Pulse increases as the body tries to compensate.

Which one of the following activities is not correct as applicable to brick corbels? (A) The maximum projection of the corbel should not be more than the thickness of the wall (B) The maximum projection of each corbel course should be limited to a quarter brick at a time (C) The discontinuous corbels are used to carry heavy concentrated loads (D) Stretcher bond is generally used for the construction of brick corbel

Description : Which one of the following activities is not correct as applicable to brick corbels? (A) The maximum projection of the corbel should not be more than the thickness of the wall (B) The ... to carry heavy concentrated loads (D) Stretcher bond is generally used for the construction of brick corbel

Last Answer : Answer: Option D

Among the sulphide oers of Ag,Hg,Pb,Fe Cu anZn how many of them can be extracted by self reduction process.

Description : Among the sulphide oers of Ag,Hg,Pb,Fe Cu anZn how many of them can be extracted by self reduction process.

Last Answer : Among the sulphide oers of Ag,Hg,Pb,Fe Cu anZn how many of them can be extracted by self reduction process.

Froth floatation process for the concentration of sulphide ore is an illustration of the practical application of

Description : Froth floatation process for the concentration of sulphide ore is an illustration of the practical application of

Last Answer : Froth floatation process for the concentration of sulphide ore is an illustration of the practical ... B. absorption C. sedimentation D. cogulation

In the Froth Floatation process, zinc sulphide and lead sulphide can be separated by__________

Description : In the Froth Floatation process, zinc sulphide and lead sulphide can be separated by__________

Last Answer : In the Froth Floatation process, zinc sulphide and lead sulphide can be separated by__________ A. ... C. using depressent D. using froth stablisers

(A) Roasting is a process in which the ore is heate in presence of air (R ) Concentration of sulphide ore is done by calcinaiton

Description : (A) Roasting is a process in which the ore is heate in presence of air (R ) Concentration of sulphide ore is done by calcinaiton

Last Answer : (A) Roasting is a process in which the ore is heate in presence of air (R ) Concentration of sulphide ... . If (A) is incorrect but (R ) is correct

Froth floatation process used for the concentration of sulphide ore. Which of the following statements are correct (a) It is based on the difference i

Description : Froth floatation process used for the concentration of sulphide ore. Which of the following statements are correct (a) It is based on the difference i

Last Answer : Froth floatation process used for the concentration of sulphide ore. Which of the following statements are correct (a) ... . (a), (b) ( c) are correct

Froth floatation process for the concentration of sulphide ore is an illustration of the practical application of

Description : Froth floatation process for the concentration of sulphide ore is an illustration of the practical application of

Last Answer : Froth floatation process for the concentration of sulphide ore is an illustration of the practical ... B. absorption C. sedimentation D. coagulateion

In Kraft process of paper manufacture, white cooking liquor consists of caustic soda (A) Sodium sulphide & sodium carbonate (B) Sodium sulphite & sodium carbonate (C) Sodium sulphite & sodium sulphide (D) None of these

Description : In Kraft process of paper manufacture, white cooking liquor consists of caustic soda (A) Sodium sulphide & sodium carbonate (B) Sodium sulphite & sodium carbonate (C) Sodium sulphite & sodium sulphide (D) None of these

Last Answer : (A) Sodium sulphide & sodium carbonate

What are ores? Give example. What are ‘placer deposits’? Give example of mineral found in such deposits. -Geography

Description : What are ores? Give example. What are ‘placer deposits’? Give example of mineral found in such deposits. -Geography

Last Answer : The term Ores' is referred to the gathering of such minerals which are mixed with other elements. To make its extraction sodium salt, the mineral content should be in sufficient concentration of the ore ... and the base of hills. Minerals found in such deposits are Gold, Silver, Tin and Platinum.

What are ores? Give example. -SST 10th

Description : What are ores? Give example. -SST 10th

Last Answer : (i) The term ore is used to describe an accumulation of any mineral mixed with other elements. Minerals are usually found in ores. Metals are extracted from the ores after removing the impurities ... . Gold, silver, tin and platinum are examples of some important minerals found in placer deposits'

Which state is the largest producer of manganese ores in India? -SST 10th

Description : Which state is the largest producer of manganese ores in India? -SST 10th

Last Answer : Odisha is the largest producer of manganese ores in India. It accounted for one-third of the country’s total production in 2000-01

Which oil is used in the floatation method for the purification of ores? -General Knowledge

Description : Which oil is used in the floatation method for the purification of ores? -General Knowledge

Last Answer : The answer is 'Pine oil'

Which ores are usually heavier ?

Description : Which ores are usually heavier ?

Last Answer : Oxide ores are usually heavier.

What does Ores mean ?

Last Answer : Ores means ore

Sulfide ores are common for the metals.

Description : Sulfide ores are common for the metals.

Last Answer : Sulfide ores are common for the metals. A. Ag,Cuand Pb B. Ag ,Cu and Sn C. Ag,Mg and Pb D. Al.Cu and Pb

how many of the following are ores of copper chalopyrite Cuprite , chalcoite ,malachite Azurite ,Bornite ,Limonite ,Zicite ,Braunite .

Description : how many of the following are ores of copper chalopyrite Cuprite , chalcoite ,malachite Azurite ,Bornite ,Limonite ,Zicite ,Braunite .

Last Answer : how many of the following are ores of copper chalopyrite Cuprite , chalcoite ,malachite Azurite ,Bornite ,Limonite ,Zicite ,Braunite .

Howw many of the following are ores of zinc : Ainc red Calamine , Willemite ,Hemimorphite,Siderite ,phyrolusite ,olivine ,Anglesite

Description : Howw many of the following are ores of zinc : Ainc red Calamine , Willemite ,Hemimorphite,Siderite ,phyrolusite ,olivine ,Anglesite

Last Answer : Howw many of the following are ores of zinc : Ainc red Calamine , Willemite ,Hemimorphite,Siderite ,phyrolusite ,olivine ,Anglesite

Statement-I : All the ores are mineral Statement-II : Most of the ores contains metals in combined state

Description : Statement-I : All the ores are mineral Statement-II : Most of the ores contains metals in combined state

Last Answer : Statement-I : All the ores are mineral Statement-II : Most of the ores contains metals in combined state

Which of the following pairs is not correctly matched with respect to the extraction of metals from their ores ?

Description : Which of the following pairs is not correctly matched with respect to the extraction of metals from their ores ?

Last Answer : Which of the following pairs is not correctly matched with respect to the extraction of metals from ... -Aluminium and tin from their oxides ores .

How many of the following are oxides ores (i) Carnalite (ii) Cuprite (iii) Cassiterite (iv) Chromite (v) Cinnabar (vi) Calamine (vii) Cerussite (Viii)

Description : How many of the following are oxides ores (i) Carnalite (ii) Cuprite (iii) Cassiterite (iv) Chromite (v) Cinnabar (vi) Calamine (vii) Cerussite (Viii)

Last Answer : How many of the following are oxides ores (i) Carnalite (ii) Cuprite (iii) Cassiterite (iv) ... (vii) Cerussite (Viii) Chalocopyrite (ix) Chalcocite

Copper is the most noble of first row transition metals and occurs in small deposits in serveral countries. Ores of copper include chalcanthite `(CuSO

Description : Copper is the most noble of first row transition metals and occurs in small deposits in serveral countries. Ores of copper include chalcanthite `(CuSO

Last Answer : Copper is the most noble of first row transition metals and occurs in small deposits in serveral ... -reduction. Iron is removed from chalcopyrite as.

Copper is the most noble of first row transition metals and occurs in small deposits in serveral countries. Ores of copper include chalcanthite `(CuSO

Description : Copper is the most noble of first row transition metals and occurs in small deposits in serveral countries. Ores of copper include chalcanthite `(CuSO

Last Answer : Copper is the most noble of first row transition metals and occurs in small deposits in ... self-reduction. Partial roasting of chalcopyrite produces

Minerals from which metals can be extracted economically and easily are called ores. The extraction of metals from theirs ores involves the following

Description : Minerals from which metals can be extracted economically and easily are called ores. The extraction of metals from theirs ores involves the following

Last Answer : Minerals from which metals can be extracted economically and easily are called ores. The ... . D. roasting followed by electrolytic reduction.

Minerals from which metals can be extracted economically and easily are called ores. The extraction of metals from theirs ores involves the following

Description : Minerals from which metals can be extracted economically and easily are called ores. The extraction of metals from theirs ores involves the following

Last Answer : Minerals from which metals can be extracted economically and easily are called ores. The extraction of metals from ... 2)S+2Cu_(2)O rarr 6Cu+SO_(2)`