The disadvantage of carbon reduction method are :

1 Answer

Answer :

The disadvantage of carbon reduction method are : A. high temperature needed which is ... carbon cannot be used with highly electropositive metals

Related questions

Description : How many of the following metals can be extracted buy carbon reduction method ? Na,Al,Mg,Sn,Fe,Pb,Zn,Ca

Last Answer : How many of the following metals can be extracted buy carbon reduction method ? Na,Al,Mg,Sn,Fe,Pb,Zn,Ca

Description : The carbon-based reduction method is NOT used for the extraction of

Last Answer : The carbon-based reduction method is NOT used for the extraction of A. Tin From `SnO_(2)` B. Iton from ... 3)` D. Mangnesium from `MgCO_(3).CaCO_(3)`

Description : What is a major disadvantage of a carbon microphone?

Last Answer : Background hiss resulting from random changes in the resistance between individual carbon granules.

Description : What is the disadvantage of biuret method?

Last Answer : The sensitivity of the method is less and is un- suitable for estimation of proteins in milligram or microgram quantities.

Description : A disadvantage of the Enterprise Value method for valuing equity is that it may be difficult to obtain the information about _______. a) operating income b) market value of debt c) market value of equity d) cash and cash equivalent

Last Answer : b) market value of debt

Description : A disadvantage of the Enterprise Value method for valuing equity is that it may be difficult to obtain the information about _______. a) operating income b) market value of debt c) market value of equity d) cash and cash equivalent

Last Answer : b) market value of debt

Description : Which of the following statements is considered a disadvantage of the straight commission compensation method? A)It necessitates closer supervision of a salesperson's activities. B)It may be difficult to administer. C)Selling costs are less predictable. D)It provides no incentives.

Last Answer : C)Selling costs are less predictable.

Description : What is the disadvantage of the project method of teaching? Options: A) It is learner-cantered B) Learners get firsthand knowledge C) The learners are not well supervised D) The learner’s interest is considered

Last Answer : C) The learners are not well supervised 

Description : List any two direct methods of level measurement. Explain Hydrostatic method of level measurement. Give one advantage and one disadvantage of it.

Last Answer : ➢ Direct methods of level measurement Direct methods 1. Hook type 2. Sight glass type 3. Float type 4. Dip stick ➢ Hydrostatic method of level measurement. ➢ A liquid in ... - 1. Their calibration gets changed according to variations in product density. 2. Require compressed air.

Description : Write one advantage and one disadvantage each for spring control method and gravity control method.

Last Answer : Advantages of Spring Control Method: 1) The spring-controlled meters may be used in any position. 2) In some instruments, springs can be used as current leads. 3) As springs are light in weight ... only. 2) Scale is non-uniform. 3) Control weights add to the weight of instrument.

Description : List one advantage and one disadvantage of one wattmeter method. 

Last Answer : Advantages:  1) Only one wattmeter is used.  2) Less number of connections.  3) Cost required is less.  Disadvantages:  1) Used only for 3- Φ balanced load and not for ... be accessible for connecting the Pressure coil.  3) Delta connection must be opened to connect current coil. 

Last Answer : The main disadvantage of the Ward-Leonard control method is high initial cost, high maintenance cost, low efficiency at light loads.

Description : What is reduction of oxide with carbon at high temperature called? -General Knowledge

Last Answer : The answer is 'Smelting'

Description : What is reduction of oxide with carbon at high temperature called? -General Knowledge

Last Answer : answer:

Description : What is reduction of oxide with carbon at high temperature called? -General Knowledge

Last Answer : answer:

Description : How many of the given metals can be obtained by carbon reduction in their extractive metallurgy

Last Answer : How many of the given metals can be obtained by carbon reduction in their extractive metallurgy

Description : Assertion : Reduction of ZnO with carbon is done at `1100^(@)C`. Reason : At this temperature, `DeltaG^(@)` is negative and the process is spontaneous

Last Answer : Assertion : Reduction of ZnO with carbon is done at `1100^(@)C`. Reason : At this temperature, ... ^(@)` is negative and the process is spontaneous.

Description : Highly electropositive metals can not be extracted by carbon reduction process because these :

Last Answer : Highly electropositive metals can not be extracted by carbon reduction process because these : A. Metals ... D. Loss of metal is more by vaporisation

Description : For which of the following metal , the carbon reduction cannot be used ?

Last Answer : For which of the following metal , the carbon reduction cannot be used ? A. Lead B. Magnisium C. Sodium D. Iron

Description : Carbon cannot be used in the reduction of `A1_(2)O_(3)` because:

Last Answer : Carbon cannot be used in the reduction of `A1_(2)O_(3)` because: A. it is non-metal B. the heat of ... heat of formation of `Al_(2)O_(3)` is too high

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)`

Description : Carbon cannot be used in the reduction of `A1_(2)O_(3)` because:

Last Answer : Carbon cannot be used in the reduction of `A1_(2)O_(3)` because: A. ZnO B. `SnO_(2)` C. `Fe_(2)O_(3)` D. `Al_(2)O_(3)`

Description : Aluminium is extracted from bauxite (a) By reduction with carbon (b) By reduction with Mg (c) By reduction with CO (d) By electrolysis in molten cryolite

Last Answer : Ans:(d)

Description : If the body undergoes alkalosis the respiratory center located in the medulla gets the information and induces the lowering of the respiratory frequency. The reduction of the respiratory frequency makes ... of bicarbonate towards the production of more hydrogen ions and thus the blood pH lowers.

Last Answer : What is the difference between respiratory acidosis and metabolic acidosis and what is the difference between respiratory alkalosis and metabolic alkalosis?

Description : Which of the following metals is NOT obtained by reduction using carbon? (1) Copper (2) Sodium (3) Iron (4) Zinc

Last Answer : (2) Sodium Explanation: Metals such as zinc, iron and copper are present in ores as their oxides. Each of these oxides is heated with carbon to obtain the metal.

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

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

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

Description : Why carbon reduction process is not applied for reducing aluminium oxide to aluminium ?

Last Answer : Ans. Because aluminium metal itself a very powerful agent and can easily reduce CO formed during the reaction back to carbon. 

Description : Electrolytic reduction cell used for conversion of calcined Al2O3to Al is a carbon lined furnace operating at 800-900 °C. The purpose of electric current supplied to the furnace is to (A) Achieve very high ... by the generation of heat (C) Electrolytically dissociate alumina (D) Both (B) & (C)

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

Description : The product of a commercial direct reduction process is (A) Liquid iron (B) Solid iron (C) Sponge iron (D) Iron saturated with carbon

Last Answer : (C) Sponge iron

Description : The reduction of the PH value, by the action of atmospheric carbon dioxide with the alkali of the cement paste is called [ A ] atmospheric corrosion [ B ] chloride corrosion [ C ] oxidation [ D ] carbonation

Last Answer : [ D ] carbonation

Description : The reduction of the PH value, by the action of atmospheric carbon dioxide with the alkali of the cement paste is called [ A ] atmospheric corrosion [ B ] chloride corrosion [ C ] oxidation [ D ] carbonation

Last Answer : [ D ] carbonation

Description : The most inefficient method of voltage reduction, from the standpoint of power loss, even when placed in series with the load, is the use of a/an ____________. A. capacitor B. inductor C. resistor D. transistor

Last Answer : Answer: C

Description : The most inefficient method of voltage reduction from the stand point of power loss, is a/an _____________. A. capacitor in series with the load B. inductor in series with the load C. capacitor and inductor in series with the load D. resistor in series with the load

Last Answer : Answer: D

Description : Hydrofining is the most recent and effective method for the (A) Removal of sulphur (B) Improvement of smoke point (C) Reduction of breathing loss (D) Improvement of viscosity index

Last Answer : (A) Removal of sulphur

Description : Pick out the wrong statement: (A) Magnetic separation method can be employed to treat both dry & wet ores (B) Reduction ratio in crushing operation is defined as the ratio of minimum feed ... ) Gyratory crusher is used for coarse crushing (D) Screens are of stationary, moving and vibratory types

Last Answer : (B) Reduction ratio in crushing operation is defined as the ratio of minimum feed size to the maximum product size

Description : The rise and fall method of reduction of levels, provides a check on (A) Back sights (B) Fore sights (C) Intermediate sights (D) All of these

Last Answer : (D) All of these

Description : The line of collimation method of reduction of levels, does not provide a check on (A) Intermediate sights (B) Fore sights (C) Back sights (D) Reduced levels

Last Answer : (A) Intermediate sights

Description : Which of the following method that is used to taken into account the slenderness effect of columns according to IS:456 - 2000 [ A ] Reduction coefficient method [ B ] Slenderness method [ C ] Moment magnification method [ D ] None of the above

Last Answer : [ A ] Reduction coefficient method

Description : What are the different mechanisms involved in the method of size reduction.

Last Answer : Cutting. Compression. Impact Attrition Combined impact and attrition 

Description : Compare collimation plane method and rise and fall method of reduction of levels.

Last Answer : The comparison between collimation plane method and Rise and fall method is given below. Collimation plane method Rise and Fall method 1 1. It is rapid method as it involves few calculations. ... Arithmetic check in this method is ΣBS - ΣFS = ΣRise - ΣFall = Last RL - First RL

Description : Robotics gurus and engineers: what is the disadvantage of shifting weight to the torso in a hexapod robot?

Last Answer : Well, not an engineer or anything, but the higher the centre of mass, the easier it is for the whole machine to topple over, especially when it goes up stairs. Or, think of a car going through a ... higher the centre of mass, the slower it has to go through the corner, in order to not flip over.

Description : Am I putting myself at an advantage, or disadvantage, by posting my "for sale" items in this format, rather than the way most people sell their stuff on Facebook?

Last Answer : Your photobucket is awkward and difficult to see you are selling something. It took me longer than a buyer is willing to take to find the right arrow at the bottom of the page. And who looks for ... searches. And, you can post the ad over multiple locations (Kansas City, Wichita, Topeka, Lawrence).

Description : Which of the two options do you believe put the usage of the truck at a disadvantage, lifting or lowering it?

Last Answer : Over all usage I would have to say lowering it,lowering it is more for handling and street rod. While raising it,while does make it a pain to load and unload,does make it clear the ground better for off roading,and does not reduce any pay load problems.

Description : In which sports are women able to compete directly with men without disadvantage?

Last Answer : The only sport that comes into my mind is chess. It doesn’t require strength, just wit and strategy.

Description : Is there any serious disadvantage to publishing blog posts and improving them later?

Last Answer : The only thing that comes to mind for me is that if you have readers of your blog, they might not go back and re-read the updated articles. But if you don’t have anyone who reads it and its just for you then… whatever makes you happy.

Description : Is there any advantage or disadvantage to having two internet connections open simultaneously?

Last Answer : You can aggregate bandwidth, but it is not terribly straightforward. If you are interested I’ll try to find you the link.

Description : Mention one advantage and one disadvantage of air transport. -Geography

Last Answer : Advantage of air transport: It is very essential for a vast country like India where distances are large, and the terrain and the climatic conditions are so diverse. It is the fastest mode of ... Disadvantage of air transport: It is the costliest mode of transport which many people cannot afford.

Description : Mention any one disadvantage of airways and any one disadvantage of pipelines as a mode of transport. -Geography

Last Answer : One Disadvantage of Airways : It is the costliest mode of transportation and can carry only limited goods and passengers. One Disadvantage of Pipelines : Underground pipelines cannot be easily repaired and detection of leakage is also difficult. Once it is laid, capacity cannot be increased.