In Bessemer converter `Cu_(2)S` is converted in to blister copper in

In Bessemer converter `Cu_(2)S` is converted in to blister copper in
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In Bessemer converter `Cu_(2)S` is converted in to blister copper in A. self reduction B. reduction with ... coal gas D. reduction with `H_(2)` gas
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(i) Copper - Bessemer converter (ii) Iorpn- Blastfurnace (iii) chromium - Aluminothermic process (iv) Tin - Carbon reducaton (v) Zinc -Belgian process

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Last Answer : (i) Copper - Bessemer converter (ii) Iorpn- Blastfurnace (iii) chromium - Aluminothermic process (iv ... data how many of them are correctly matched ?

Which of the following reactions does not occur in Bessemer converter in the extraction of copper from chalcopyrites ?

Description : Which of the following reactions does not occur in Bessemer converter in the extraction of copper from chalcopyrites ?

Last Answer : Which of the following reactions does not occur in Bessemer converter in the extraction of copper from chalcopyrites ... 2Cu_(2)O rarr 6Cu + SO_(2)`

The final step for the extraction of copper from copper pyrite in Bessemer converter involves the reaction

Description : The final step for the extraction of copper from copper pyrite in Bessemer converter involves the reaction

Last Answer : The final step for the extraction of copper from copper pyrite in Bessemer converter involves the reaction A. ` ... D. `2Cu_(2)O+FeSto4Cu+Fe+SO_(2)`

Which of the following reaction(s) take place in Bessemer converter for the extraction of Cu?

Description : Which of the following reaction(s) take place in Bessemer converter for the extraction of Cu?

Last Answer : Which of the following reaction(s) take place in Bessemer converter for the extraction of Cu? A. `2CuFeS_(2) + ... ` D. `FeO + SiO_(2) rarr FeSiO_(3)`

Upon heating with `Cu_(2)S` the reaction (s) that give copper metal is /are

Description : Upon heating with `Cu_(2)S` the reaction (s) that give copper metal is /are

Last Answer : Upon heating with `Cu_(2)S` the reaction (s) that give copper metal is /are A. `CuFeS_(2)` B. `CuO` C. `Cu_(2)O` D. `CuSO_(4)`

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

Copper is purifed by electrolaytic refining of blister copper ,The correct statement (s) about this prcess is (are)

Description : Copper is purifed by electrolaytic refining of blister copper ,The correct statement (s) about this prcess is (are)

Last Answer : Copper is purifed by electrolaytic refining of blister copper ,The correct statement (s) about this ... at cathode D. Impurites settle as anode -mud

Pig iron made from haematite ores free from sulphur, phosphorus and copper, is known as (A) Bessemer pig (B) Grey or foundry pig (C) White or forge pig (D) Mottled pig

Description : Pig iron made from haematite ores free from sulphur, phosphorus and copper, is known as (A) Bessemer pig (B) Grey or foundry pig (C) White or forge pig (D) Mottled pig

Last Answer : Answer: Option A

A mixture of CuS (molecular weight = `M_(1)`) and `Cu_(2)S` (molecular weight `=M_(2)`) is oxidised by `KMnO_(4)` (molecular weight `=M_(3)`) in acidi

Description : A mixture of CuS (molecular weight = `M_(1)`) and `Cu_(2)S` (molecular weight `=M_(2)`) is oxidised by `KMnO_(4)` (molecular weight `=M_(3)`) in acidi

Last Answer : A mixture of CuS (molecular weight = `M_(1)`) and `Cu_(2)S` (molecular weight `=M_(2)`) is ... of CuS, `Cu_(2)S` and `KMnO_(4)` respectively.

Heating mixture of `Cu_(2)O` and `Cu_(2)S` will give

Description : Heating mixture of `Cu_(2)O` and `Cu_(2)S` will give

Last Answer : Heating mixture of `Cu_(2)O` and `Cu_(2)S` will give A. `Cu_(2)SO_(3)` B. `CuO+CuS` C. `Cu+SO_(3)` D. `Cu + SO_(2)`

Two ores A1 and A2 of a metal M show the following reactivity: `A_(1)=CuCo_(3).Cu(OH)_(3),S=Cu` `P=Cu_(2)I_(2): G=SO_(2)` . Then `A_(2)` is

Description : Two ores A1 and A2 of a metal M show the following reactivity: `A_(1)=CuCo_(3).Cu(OH)_(3),S=Cu` `P=Cu_(2)I_(2): G=SO_(2)` . Then `A_(2)` is

Last Answer : Two ores A1 and A2 of a metal M show the following reactivity: `A_(1)=CuCo_(3).Cu(OH)_(3),S=Cu` `P=Cu_(2) ... )` B. `CuO` C. `CuCO_(3)` D. `Cu_(2)S`

Heating mixture of `Cu_(2)O`and `Cu_(2)S` will give

Description : Heating mixture of `Cu_(2)O`and `Cu_(2)S` will give

Last Answer : Heating mixture of `Cu_(2)O`and `Cu_(2)S` will give A. `Cu+SO_(2)` B. `Cu+SO_(3)` C. `CuO+CuS` D. `Cu_(2)SO_(3)`

Out of `Cu_(2)S,HgS,Ag_(2)S` and ZnS roasting will convert the mineral in to metal case of

Description : Out of `Cu_(2)S,HgS,Ag_(2)S` and ZnS roasting will convert the mineral in to metal case of

Last Answer : Out of `Cu_(2)S,HgS,Ag_(2)S` and ZnS roasting will convert the mineral in to metal case of A. `Cu_(2)S,Zns` B. Hgs,ZnS C. `Cu_(2)S,Ag_(2)S` D. HgS

What is blister copper ?

Description : What is blister copper ?

Last Answer : Copper mixed with blister waste.

Blister copper is:

Description : Blister copper is:

Last Answer : Blister copper is: A. Bessemer converteer B. Reverberatory furnace C. Blast furnace D. Electrolytic tank

Blister copper is refined by stirring moltem impure metal with green logs of wood because such a wood liberated hydrocarbon gases like `(CH_(4))`. The

Description : Blister copper is refined by stirring moltem impure metal with green logs of wood because such a wood liberated hydrocarbon gases like `(CH_(4))`. The

Last Answer : Blister copper is refined by stirring moltem impure metal with green logs of wood because such a wood ... poling, Y=CuO D. X=cupellation, Y=CuO

The impurity present in Blister copper is

Description : The impurity present in Blister copper is

Last Answer : The impurity present in Blister copper is A. FeS B. `Cu_(2)O` C. `Cu_(2)S` D. FeO

Explain electro-refining of blister copper:

Description : Explain electro-refining of blister copper: 

Last Answer : 1. It is carried out in the large lead lined tank. 2. Impure Copper is placed into large plates which are suspended into tank at intervals & acts as anode. 3. Cathodes are thin plates of pure ... pure copper is deposited on the cathodes. 7. Electro - refined copper is about 99.99% pure.

In the acid Bessemer process, the hot metal should have the following composition. (A) S < 0.05% and P < 0.05% (B) S < 0.05% and P < 1.5% (C) S < 0.05% and P > 1.5% (D) S > 1.5% and P < 0.05%

Description : In the acid Bessemer process, the hot metal should have the following composition. (A) S < 0.05% and P < 0.05% (B) S < 0.05% and P < 1.5% (C) S < 0.05% and P > 1.5% (D) S > 1.5% and P < 0.05%

Last Answer : (A) S < 0.05% and P < 0.05%

In successive-approximation A/D converter, offset voltage equal to 1/2 LSB is added to the D/A converter’s output. This is done to (A) Improve the speed of operation. (B) Reduce the maximum quantization error. (C) Increase the number of bits at the output. (D) Increase the range of input voltage that can be converted

Description : In successive-approximation A/D converter, offset voltage equal to 1/2 LSB is added to the D/A converter's output. This is done to (A) Improve the speed of operation. (B) Reduce the maximum ... Increase the number of bits at the output. (D) Increase the range of input voltage that can be converted

Last Answer : (B) Reduce the maximum quantization error.

Amongst `[TiE_(6)]^(2-), [CoF_(6)]^(3-), Cu_(2)Cl_(2)` and `[NiCl_(4)]^(2-)` [Atomic no. `Ti = 22, Co = 27, Cu = 29, Ni = 28`] the colourless species

Description : Amongst `[TiE_(6)]^(2-), [CoF_(6)]^(3-), Cu_(2)Cl_(2)` and `[NiCl_(4)]^(2-)` [Atomic no. `Ti = 22, Co = 27, Cu = 29, Ni = 28`] the colourless species

Last Answer : Amongst `[TiE_(6)]^(2-), [CoF_(6)]^(3-), Cu_(2)Cl_(2)` and `[NiCl_(4)]^(2-)` [Atomic no. `Ti = 22, ... (2)Cl_(2)` D. `TiF_(6)^(2-) and Cu_(2)Cl_(2)`

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): 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

From the graph, which is the best reducing agent to reduce `Cu_(2)O` at high temperature

Description : From the graph, which is the best reducing agent to reduce `Cu_(2)O` at high temperature

Last Answer : From the graph, which is the best reducing agent to reduce `Cu_(2)O` at high temperature A. Coke B. CO C. `CO_(2)` D. 1&2

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)`

Herpes is: A. An S.T.D. B. a cold sore or fever blister C. an invasion of pyogenic bacterium

Description : Herpes is: A. An S.T.D. B. a cold sore or fever blister C. an invasion of pyogenic bacterium

Last Answer : Ans: B

How did the Bessemer process lead to a boom in the railroads?

Description : How did the Bessemer process lead to a boom in the railroads?

Last Answer : What is the answer ?

Which is the purest form of iron? (A) Wrought iron (B) Pig iron (C) Bessemer iron (D) Grey iron

Description : Which is the purest form of iron? (A) Wrought iron (B) Pig iron (C) Bessemer iron (D) Grey iron

Last Answer : (A) Wrought iron

Pig iron obtained from the furnace which is properly provided with fuel at a very high temperature, is called (A) Bessemer pig (B) Grey or foundry pig (C) White or forge pig (D) Mottled pig

Description : Pig iron obtained from the furnace which is properly provided with fuel at a very high temperature, is called (A) Bessemer pig (B) Grey or foundry pig (C) White or forge pig (D) Mottled pig

Last Answer : Answer: Option B

For light and ornamental casting, the most unsuitable pig iron, is (A) Bessemer pig (B) Grey or foundry pig (C) White or forge pig (D) Mottled pig

Description : For light and ornamental casting, the most unsuitable pig iron, is (A) Bessemer pig (B) Grey or foundry pig (C) White or forge pig (D) Mottled pig

Last Answer : Answer: Option D

Softer variety of steel may be obtained by (A) Cementation process (B) Crucible process (C) Bessemer process (D) Open hearth

Description : Softer variety of steel may be obtained by (A) Cementation process (B) Crucible process (C) Bessemer process (D) Open hearth

Last Answer : Answer: Option C

Bessemer process is used for the manufacture of (A) Pig iron (B) Cast iron (C) Wrought iron D) Steel

Description : Bessemer process is used for the manufacture of (A) Pig iron (B) Cast iron (C) Wrought iron D) Steel

Last Answer : Answer: Option D

The variety of pig iron used for the manufacture of steel by Bessemer process, is (A) Bessemer pig (B) Grey pig (C) White forge pig (D) Mottled pig

Description : The variety of pig iron used for the manufacture of steel by Bessemer process, is (A) Bessemer pig (B) Grey pig (C) White forge pig (D) Mottled pig

Last Answer : Answer: Option A

If the furnace is provided with insufficient fuel at low temperatures, the type of pig iron produced, is called (A) Bessemer pig (B) Grey or foundry pig (C) White or forge pig (D) Mottled pig

Description : If the furnace is provided with insufficient fuel at low temperatures, the type of pig iron produced, is called (A) Bessemer pig (B) Grey or foundry pig (C) White or forge pig (D) Mottled pig

Last Answer : Answer: Option C

The steel which contains fissures and cavities, is manufactured by (A) Cementation process (B) Crucible process (C) Bessemer process (D) Open hearth process

Description : The steel which contains fissures and cavities, is manufactured by (A) Cementation process (B) Crucible process (C) Bessemer process (D) Open hearth process

Last Answer : Answer: Option A

Pick up the correct statement from the following: (A) Steel produced by open hearth process is milder than that obtained by the Bessemer process (B) Engineers prefer open hearth steel for structural purpose as it is more homogenous (C) Basic Bessemer process is suitable for converting poor ore containing a large proportion of sulphur and phosphorus into steel

Description : Pick up the correct statement from the following: (A) Steel produced by open hearth process is milder than that obtained by the Bessemer process (B) Engineers prefer open hearth steel ... is suitable for converting poor ore containing a large proportion of sulphur and phosphorus into steel

Last Answer : Answer: Option D

For high grade instruments the steel preferred to, is (A) Cast steel (B) Bessemer steel (C) Mild steel (D) Whitworth compressed steel

Description : For high grade instruments the steel preferred to, is (A) Cast steel (B) Bessemer steel (C) Mild steel (D) Whitworth compressed steel

Last Answer : Answer: Option A

The process of manufacturing steel by heating short lengths of wrought iron bars mixed with charcoal in fire clay crucibles and collecting the molten iron into moulds, is known as (A) Cementation process (B) Crucible process (C) Bessemer process (D) Open hearth process

Description : The process of manufacturing steel by heating short lengths of wrought iron bars mixed with charcoal in fire clay crucibles and collecting the molten iron into moulds, is known as (A) Cementation process (B) Crucible process (C) Bessemer process (D) Open hearth process

Last Answer : Answer: Option B

The variety of pig iron used for manufacture of wrought iron, is (A) Bessemer pig (B) Grey or foundry pig (C) White forge pig (D) Mottled pig

Description : The variety of pig iron used for manufacture of wrought iron, is (A) Bessemer pig (B) Grey or foundry pig (C) White forge pig (D) Mottled pig

Last Answer : Answer: Option C

The process of decarbonising the pig iron completely and then adding proper percentage of carbon for manufacturing steel, is called (A) Cementation process (B) Crucible process (C) Bessemer process (D) Open hearth process

Description : The process of decarbonising the pig iron completely and then adding proper percentage of carbon for manufacturing steel, is called (A) Cementation process (B) Crucible process (C) Bessemer process (D) Open hearth process

Last Answer : Answer: Option A

The steel used for the manufacture of rails, is (A) Bessemer steel (B) Mild steel (C) Cast steel (D) Stainless steel

Description : The steel used for the manufacture of rails, is (A) Bessemer steel (B) Mild steel (C) Cast steel (D) Stainless steel

Last Answer : Answer: Option A

Cast steel is manufactured by (A) Cementation process (B) Crucible process (C) Bessemer process (D) Open hearth proce

Description : Cast steel is manufactured by (A) Cementation process (B) Crucible process (C) Bessemer process (D) Open hearth process

Last Answer : Answer: Option B

L.D. converter is used in the production of (A) Pig iron (B) Steel (C) Copper (D) Zinc

Description : L.D. converter is used in the production of (A) Pig iron (B) Steel (C) Copper (D) Zinc

Last Answer : (B) Steel

L.D. (Linz-Donawitz) converter is used in the production of (A) Copper (B) Steel (C) Zinc (D) Aluminium

Description : L.D. (Linz-Donawitz) converter is used in the production of (A) Copper (B) Steel (C) Zinc (D) Aluminium

Last Answer : (B) Steel

The metals used in catalytic converter are a.Iron, Copper

Description : 10. The metals used in catalytic converter are a.Iron, Copper b. Platinum , Palladium ,and Rhodium c. Gold , Silver , Nichrome d. Mercury ,Lead, Iron

Last Answer : Ans- b. Platinum , Palladium ,and Rhodium

Softness of silver can be converted into hardness by alloying it with small quantity of (A) Copper & nickel (B) Zinc (C) Aluminium (D) Tin

Description : Softness of silver can be converted into hardness by alloying it with small quantity of (A) Copper & nickel (B) Zinc (C) Aluminium (D) Tin

Last Answer : (A) Copper & nickel

Copper can be converted into gold by ? A. Artificial radioactivity (Answer) B. heating C. Electroplating D. Chemical reaction

Description : Copper can be converted into gold by ? A. Artificial radioactivity (Answer) B. heating C. Electroplating D. Chemical reaction

Last Answer : A. Artificial radioactivity (Answer)

A blister that doesn’t hurt: does it need any special treatment or attention?

Description : A blister that doesn’t hurt: does it need any special treatment or attention?

Last Answer : Just keep it clean. I wouldn’t worry about it if it doesn’t hurt and isn’t red, and there is no pus. I’m not a doctor, but I’ve had plenty of blisters on my feet from shoes.

Blister on foot!! Should I pop it and will it go away? Is it ok if I put ice.

Description : Blister on foot!! Should I pop it and will it go away? Is it ok if I put ice.

Last Answer : Puncture with a sterilized needle, then cover with a bandage.

Why is my blister so itchy?

Description : Why is my blister so itchy?

Last Answer : Wounds often itch when they are healing. Or it’s getting infected. If it gets redder and more painful, you might want to peel that blister off, clean it up, and get some antibiotic ointment on it and a proper bandage.