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

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
by

1 Answer

Answer :

d) removal of impurities from ore , reduction of ore , refining of metal
by

Related questions

________ is naturally occurring inorganic substance found deep under the surface of the earth. a) ore b)mineral c)metal d)non-metal

Description : ________ is naturally occurring inorganic substance found deep under the surface of the earth. a) ore b)mineral c)metal d)non-metal

Last Answer : b)mineral

The non-metal used in batteries is a) phosphorous b)nitrogen c) carbon d)sulphur

Description : The non-metal used in batteries is a) phosphorous b)nitrogen c) carbon d)sulphur

Last Answer : c) carbon

Which metal among the following melts below 30^0 C. a) copper b)aluminium c)gold d)caesium

Description : Which metal among the following melts below 30^0 C. a) copper b)aluminium c)gold d)caesium

Last Answer : d)caesium

Which of the following is not property of sodium metal? a) lustre b)hard c)low melting point d)solid at room temperature.

Description : Which of the following is not property of sodium metal? a) lustre b)hard c)low melting point d)solid at room temperature.

Last Answer : c)low melting point

Which of the following non-metal reacts and catches fire on exposure to air? a) phosphorous b)nitrogen c)sulphur d)hydrogen

Description : Which of the following non-metal reacts and catches fire on exposure to air? a) phosphorous b)nitrogen c)sulphur d)hydrogen

Last Answer : a) phosphorous

Metals are generally hard, which of the following metal is an exception and can be cut with a knife? a) iron b)sodium c)gold d)magnesium

Description : Metals are generally hard, which of the following metal is an exception and can be cut with a knife? a) iron b)sodium c)gold d)magnesium

Last Answer : b)sodium

Rohan had learnt that non-metals on beating with hammer are generally broken into pieces. Which of the following is a non-metal? a) iron nail b)aluminium wire c)copper wire d)piece of coal

Description : Rohan had learnt that non-metals on beating with hammer are generally broken into pieces. Which of the following is a non-metal? a) iron nail b)aluminium wire c)copper wire d)piece of coal

Last Answer : d)piece of coal

A homogenous mixture of two or more metal or a metal and non-metal is known as _____. a) alloy b)element c)mineral d)compound

Description : A homogenous mixture of two or more metal or a metal and non-metal is known as _____. a) alloy b)element c)mineral d)compound

Last Answer : a) alloy

_______ being a very light metal is used for making aircraft bodies . a) aluminium b)copper c)zinc d)iron

Description : _______ being a very light metal is used for making aircraft bodies . a) aluminium b)copper c)zinc d)iron

Last Answer : a) aluminium

Germanium is an example of ____________. a) metal b)metalloid c)non-metal d)none

Description : Germanium is an example of ____________. a) metal b)metalloid c)non-metal d)none

Last Answer : b)metalloid

The property due to which a metal can be hammered into thin sheets without breaking is _______. a) malleability b)ductility c)tensile strength d)conductivity

Description : The property due to which a metal can be hammered into thin sheets without breaking is _______. a) malleability b)ductility c)tensile strength d)conductivity

Last Answer : a) malleability

Example of non-metal which exist in solid state is __________ . a) sulphur b)bromine c)chlorine d)oxygen

Description : Example of non-metal which exist in solid state is __________ . a) sulphur b)bromine c)chlorine d)oxygen

Last Answer : a) sulphur

__________ metal is liquid at room temperature . a) mercury b)iron c)copper d)silver

Description : __________ metal is liquid at room temperature . a) mercury b)iron c)copper d)silver

Last Answer : a) mercury

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

Silver is used for high precision electrical contacts in computer due to its property of ______. a) malleability b)conductivity c)ductility d)none

Description : Silver is used for high precision electrical contacts in computer due to its property of ______. a) malleability b)conductivity c)ductility d)none

Last Answer : b)conductivity

Which of the following is not property of an alloy? a) strong b)resistant to corrosion c)hard d)Poor conductor of electricity

Description : Which of the following is not property of an alloy? a) strong b)resistant to corrosion c)hard d)Poor conductor of electricity

Last Answer : d)Poor conductor of electricity

One of the practical application of platinum is a) electrical cables c)decorating food stuff b) cooking vessel d)dentistry

Description : One of the practical application of platinum is a) electrical cables c)decorating food stuff b) cooking vessel d)dentistry

Last Answer : d)dentistry

Aluminium is used in making aircraft because a) malleable b)light c)both i and ii d)none of the above

Description : Aluminium is used in making aircraft because a) malleable b)light c)both i and ii d)none of the above

Last Answer : b)light

The composition of brass alloy is a) copper b)copper and gold c)copper and zinc d)tin and zinc

Description : The composition of brass alloy is a) copper b)copper and gold c)copper and zinc d)tin and zinc

Last Answer : c)copper and zinc

Generally metallic oxides are basic and non-metallic are acidic in nature. Solution of which of the following oxides in water will change the colour of blue litmus to red? a)sulphur dioxide b)Magnesium oxide c)iron oxide d)copper oxide

Description : Generally metallic oxides are basic and non-metallic are acidic in nature. Solution of which of the following oxides in water will change the colour of blue litmus to red? a)sulphur dioxide b)Magnesium oxide c)iron oxide d)copper oxide

Last Answer : a)sulphur dioxide

________ is an alloy made from iron , chromium and nickel . a) stainless steel b)steel c)brass d)bronze

Description : ________ is an alloy made from iron , chromium and nickel . a) stainless steel b)steel c)brass d)bronze

Last Answer : a) stainless steel

The purity of gold is expressed in terms of ____ ___. a)carat b)ounce c)pound d)none

Description : The purity of gold is expressed in terms of ____ ___. a)carat b)ounce c)pound d)none

Last Answer : a)carat

Metallic oxide like MgO reacts with water to form a _______. a)base b)acid c)salt d)water

Description : Metallic oxide like MgO reacts with water to form a _______. a)base b)acid c)salt d)water

Last Answer : a)base

________ does not react with dilute hydrochloric acid but reacts with sulphuric acid and does not liberate hydrogen gas. a) iron b)copper c)gold d)zinc

Description : ________ does not react with dilute hydrochloric acid but reacts with sulphuric acid and does not liberate hydrogen gas. a) iron b)copper c)gold d)zinc

Last Answer : b)copper

Name the sequential steps involved in extraction of copper from its copper pyrite ore.

Description : Name the sequential steps involved in extraction of copper from its copper pyrite ore.

Last Answer : sequential steps involved in extraction of copper from its copper pyrite ore

Which of the following diagrams is correctly related to different steps involved in the extraction of Sn form cassiterite Ore?

Description : Which of the following diagrams is correctly related to different steps involved in the extraction of Sn form cassiterite Ore?

Last Answer : Which of the following diagrams is correctly related to different steps involved in the extraction ... displacement method `rarr` Vapour phase refing

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

In the extraction of Cu from its sulphide ore, the metal is formed by reduction of `Cu_(2)O` with

Description : In the extraction of Cu from its sulphide ore, the metal is formed by reduction of `Cu_(2)O` with

Last Answer : In the extraction of Cu from its sulphide ore, the metal is formed by reduction of `Cu_(2)O` with A. FeS B. CO C. `Cu_(2)S` D. `SO_(2)`

(A) Auto reduction of ore is used for the extraction of copper (R ) The sulphide ore of copper reacts with its oxide to the give the metal

Description : (A) Auto reduction of ore is used for the extraction of copper (R ) The sulphide ore of copper reacts with its oxide to the give the metal

Last Answer : (A) Auto reduction of ore is used for the extraction of copper (R ) The sulphide ore of copper reacts ... . If (A) is incorrect but (R ) is correct

In the extraction of Cu from its sulphide ore, the metal is formed by reduction of `Cu_(2)O` with

Description : In the extraction of Cu from its sulphide ore, the metal is formed by reduction of `Cu_(2)O` with

Last Answer : In the extraction of Cu from its sulphide ore, the metal is formed by reduction of `Cu_(2)O` with A. FeS B. CO C. `Cu_(2)S` D. `SO_(2)`

Petroleum coke is used mainly in the (A) Discoloration of yellow glycerine (B) Sugar refining (C) Manufacture of carbon electrode (D) Blast furnace for reduction of iron ore

Description : Petroleum coke is used mainly in the (A) Discoloration of yellow glycerine (B) Sugar refining (C) Manufacture of carbon electrode (D) Blast furnace for reduction of iron ore

Last Answer : (C) Manufacture of carbon electrode

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

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

Elecyroltic refining is used to purify which of the following metals?

Description : Elecyroltic refining is used to purify which of the following metals?

Last Answer : Elecyroltic refining is used to purify which of the following metals? A. Cu and Zn B. Ge and Si C. Zr and Ti D. Zn and Hg

Refining process of impure metals depends upon the differences in properties of the metal. Extraction of Al is usually carried out from its bauxite or

Description : Refining process of impure metals depends upon the differences in properties of the metal. Extraction of Al is usually carried out from its bauxite or

Last Answer : Refining process of impure metals depends upon the differences in properties of the metal. ... . leaching C. liquation D. magnetic seperation

Refining process of impure metals depends upon the differences in properties of the metal. Extraction of Al is usually carried out from its bauxite or

Description : Refining process of impure metals depends upon the differences in properties of the metal. Extraction of Al is usually carried out from its bauxite or

Last Answer : Refining process of impure metals depends upon the differences in properties of the metal. Extraction of Al is usually ... A D. I-D,II-A,III-C,IV-B

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`

10.(a) An ore on treatment with dilute hydrochloric acid produces brisk effervesces. What type of ore is this? What steps will be required to obtain metal from the enriched ore. , (b) Copper coin is kept immersed in silver nitrate solution for some time. What change will take place in coin and colour of the solution ? Write balanced chemical equation of the reaction involved. -Chemistry

Description : 10.(a) An ore on treatment with dilute hydrochloric acid produces brisk effervesces. What type of ore is this? What steps will be required to obtain metal from the enriched ore. , (b) ... in coin and colour of the solution ? Write balanced chemical equation of the reaction involved. -Chemistry

Last Answer : (a) Carbonate ore: (i) Calcination: Carbonate ore is heated in limited supply of air and oxide is obtained, e.g. (b) Copper, being more reactive than silver will displace silver from silver nitrate ... and there will be deposition of silver on copper coin. The colour of solution will turn to blue.

Extraction of `Ag` from sulphide ore and removal of unreacted silver bromide from phorographic plate involve complexes:

Description : Extraction of `Ag` from sulphide ore and removal of unreacted silver bromide from phorographic plate involve complexes:

Last Answer : Extraction of `Ag` from sulphide ore and removal of unreacted silver bromide from phorographic plate involve ... (3))_(2)]^(3-)` respectively

The reaction (s) which does (do) not occur in the reduction zone in the extraction of iron from haematite ore is (are)

Description : The reaction (s) which does (do) not occur in the reduction zone in the extraction of iron from haematite ore is (are)

Last Answer : The reaction (s) which does (do) not occur in the reduction zone in the extraction of iron from haematite ore ... ` D. `CaO + SiO_(2) rarr CaSiO_(3)`

The reaction (s) which does (do) not occur in the reduction zone in the extraction of iron from haematite ore is (are)

Description : The reaction (s) which does (do) not occur in the reduction zone in the extraction of iron from haematite ore is (are)

Last Answer : The reaction (s) which does (do) not occur in the reduction zone in the extraction of iron from haematite ore ... ` D. `CaO + SiO_(2) rarr CaSiO_(2)`

The reaction (s) which does (do) not occur in the reduction zone in the extraction of iron from haematite ore is (are)

Description : The reaction (s) which does (do) not occur in the reduction zone in the extraction of iron from haematite ore is (are)

Last Answer : The reaction (s) which does (do) not occur in the reduction zone in the extraction of iron from haematite ore ... ` D. `CaO + SiO_(2) rarr CaSiO_(3)`

Electrometallurgy is not involved in the extraction of __________ from its ore. (A) Aluminium (B) Tin (C) Lead (D) Both (B) & (C)

Description : Electrometallurgy is not involved in the extraction of __________ from its ore. (A) Aluminium (B) Tin (C) Lead (D) Both (B) & (C)

Last Answer : (D) Both (B) & (C)

Sulphur removal by heating of pyrite ore in presence of air is called its (A) Reduction (B) Roasting (C) Calcination (D) Smelting

Description : Sulphur removal by heating of pyrite ore in presence of air is called its (A) Reduction (B) Roasting (C) Calcination (D) Smelting

Last Answer : (B) Roasting

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

Statement-1: Extraction of gold from its native ore involves leaching the metal wih dilute solution of NaCN in presence of air. Statement-2:This is an

Description : Statement-1: Extraction of gold from its native ore involves leaching the metal wih dilute solution of NaCN in presence of air. Statement-2:This is an

Last Answer : Statement-1: Extraction of gold from its native ore involves leaching the metal wih dilute solution of ... -1 is false but Statement -2 is true

Which of the following is an undesirable property of slag produced during the Pyrometallurgical method of metal extraction from its ore? (A) High fusibility & fluidity (B) High thermal conductivity (C) Low density (D) High chemical activity

Description : Which of the following is an undesirable property of slag produced during the Pyrometallurgical method of metal extraction from its ore? (A) High fusibility & fluidity (B) High thermal conductivity (C) Low density (D) High chemical activity

Last Answer : B) High thermal conductivity

The extraction of metal from the ore is

Description : The extraction of metal from the ore is

Last Answer : The extraction of metal from the ore is A. an oxidation process B. a reduction process C. a hydration process D. a neutratlisaiton process