Description : Which metal is extracted by electrolytic reaction method?
Last Answer : Al (Aluminium)
Description : Which metal is extracted by thermal reduction process? -Do You Know?
Last Answer : answer:
Description : If an alternator is to be inactive for a considerable period of time, which of the following actions should be taken? A. It should be disconnected from the prime mover and raised off its bearing supports ... . D. The windings and collector rings should be protected with a thin coat of grease or oil.
Last Answer : Answer: C
Description : Pick out the wrong statement about coating/electroplating of metals. (A) Phosphate coating is used as an excellent base for paints & enamels (B) Phosphate coating is less corrosion resistant than ... coating metal is made the anode (D) Calorising is the process of coating steel with chromium
Last Answer : (D) Calorising is the process of coating steel with chromium
Description : Powder metallurgy process does not make metal powder by (A) Atomisation (B) Grinding/milling (C) Hammering (D) Electrolytic deposition
Last Answer : Option C
Description : What is cinnabar? How is metal extracted from cinnabar? Explain briefly. -Science
Last Answer : Cinnabar is HgS. Mercury is obtained by roasting cinnabar. HgO formed is thermally unstable and gives mercury. Mercury can be purified by distillation.
Description : The metal extracted by leaching with cyanide is
Last Answer : The metal extracted by leaching with cyanide is A. Mg B. Ag C. Cu D. Na
Description : Name the metal M which is extracted on the basis of following reactions: `4M+8NaCN+2H_(2)O+O_(2)to` `4NaM(CN)_(2)+4NaOH` `2NaM(CN)_(2)+ZntoNa_(2)Zn(CN
Last Answer : Name the metal M which is extracted on the basis of following reactions: `4M+8NaCN+2H_(2)O+O_(2)to` `4NaM(CN)_(2 ... 2M` A. Au or Ag B. Hg C. Ni D. Fe
Description : (A) All minerals are ores (R ) Ores are minerals from which metal can be extracted convenitly and economically
Last Answer : (A) All minerals are ores (R ) Ores are minerals from which metal can be extracted convenitly and ... If (A) is incorrect but (R ) is correct
Description : The copper metal is extracted from its
Last Answer : The copper metal is extracted from its A. Carbonate ore B. Sulphide ore C. Sulphate ore D. Chloride ore
Description : The metal that is usually extracted from sea water is?
Last Answer : :Mg
Description : The mineral from which a metal can be profitably extracted are called?
Last Answer : Ores
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
Description : The metal extracted from Bauxite is : (1) Silver (2) Copper (3) Manganese (4) Aluminum
Last Answer : Aluminum
Description : Which metal is extracted from sea water? (1) Potassium (2) Magnesium (3) Aluminium (4) Beryllium
Last Answer : Magnesium
Description : Which of the following can be purified by the electrolytic method? (a) Sodium (Na) (b) Copper (Cu) (c) Boron (B) (d) Chlorine (C12)
Last Answer : Ans:129
Description : Common salt is generally not produced commonly by __________ method from brine. (A) Freeze drying (B) Electrolytic (C) Solar evaporation (D) Vacuum evaporation
Last Answer : (A) Freeze drying
Description : Common salt is produced from sea water in India generally by the __________ method. (A) Freeze drying (B) Solar evaporation (C) Electrolytic (D) None of these
Last Answer : B) Solar evaporation
Description : Chlorine gas is produced by the electrolysis of brine (NaCl solution with solid NaCl make up) in mercury electrolytic cell. Which of the following is the anodic reaction? (A) Oxidation of Na + ions (B) Oxidation of Cl - ions (C) Reduction of Na + ions (D) Reduction of Cl - ions
Last Answer : (B) Oxidation of Cl - ions
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 : I need to buy really low voltage electrolytic capacitors.
Last Answer : answer:Allied Electronics http://www.alliedelec.com/ Weird hobby though.
Description : Can someone possibly explain or summarize the chemistry in this electrolytic cell patent for me (see link in details)
Last Answer : answer:This is a pretty complicated patent, more complicated than could easily be explained/summarized here (at least without writing a volume nearly as long as the patent you've linked). I recall learning about this ... about it I may be able to help, but there's a lot there to just summarize it.
Description : What is meant by skeltal type chemical equation? What does it represent? Using the equation for electrolytic decomposition of water, differentiate between a skeltal chemical equation and a balanced chemical equation. -Chemistry
Last Answer : Answer. The equations in which gaseous are written in atomic form instead of molecular form and equation is not balanced, are called skeltal type equation. They represent gaseous elements formed in atomic state and equation is not balanced
Description : How do electrolytic conductors conduct electricity ?
Last Answer : Compounds that conduct electricity in solution or in molten state are called electrolytic conductors. These compounds can conduct electricity in molten state and in aqueous solution as they are ... the positive and negative ions receive and reject electrons, respectively, so that electricity flows.
Description : What is electrolytic capacitor ?
Last Answer : Electrolytic capacitors usually produce more capacitance in less space. The electrolytic used inside it helps in creating more capacitance. In this type of capacitor aluminum ( Al) metal foil and thin ... the correct polarity when used in any circuit or the capacitor may explode and be damaged.
Description : Are organic compounds electrolytic or covalent substances ?
Last Answer : Organic compounds are covalent substances.
Description : What is the value of electrolytic ball of simple voltaic cell ?
Last Answer : The value of the electromotive ball of a simple voltaic cell is 1.08 volts.
Description : What is Electrolytic Cell ?
Last Answer : The cell in which electrolysis is performed is called electrolysis cell
Last Answer : Metal, Non-metallic Of the element Chemical Reaction Period Metal Atomic Outer layer To be One Or Multiple Electron S Non-metallic Atomic Externally Transferred To be Through Created Cation, Anion In Fixed Electric Attraction By That Bonding Creation Is Him Electrocution Bonding Says.
Description : How is electrolytic conductance measured experimentally?
Last Answer : Electrolyte conductance can be measured by putting anode and cathode on it and measured the external voltage. Then compared the same with some standard known electrolyte solution. Also, specific ... charge discharge method. So by calculating with inbuilt software we can easily get the conductance.
Description : Electrolytic reduction of alumina to aluminum by the Hall-Heroult process is carried out
Last Answer : Electrolytic reduction of alumina to aluminum by the Hall-Heroult process is carried out A. In ... which forms a melt with higher melting temparature.
Description : Electrolytic reducation of `Al_(2)O_(3)` Electrolyte `(Al_(2)O_(3)+cryolite)` Cathode : fraphite inside Fe -Container Coke power is spreased over the
Last Answer : Electrolytic reducation of `Al_(2)O_(3)` Electrolyte `(Al_(2)O_(3)+cryolite)` Cathode : fraphite inside Fe ... aluminmum by air D. (A) and (B) both
Description : Electrolytic reducation of `Al_(2)O_(3)` Electrolyte `(Al_(2)O_(3)+cryolite) ` Cathode : fraphite inside Fe -Container The purpose of adding cryolite
Last Answer : Electrolytic reducation of `Al_(2)O_(3)` Electrolyte `(Al_(2)O_(3)+cryolite) ` Cathode : fraphite inside ... the impurities as slag D. Both (a) & (B)
Description : Electrolytic reducation of `Al_(2)O_(3)` Electrolyte `(Al_(2)O_(3)+cryolite)` Cathode : fraphite inside Fe -Container Pick out the statement which is
Last Answer : Electrolytic reducation of `Al_(2)O_(3)` Electrolyte `(Al_(2)O_(3)+cryolite)` Cathode : fraphite ... 2)` D. nikkel may be affected at high temperature
Description : Statement -I :Cryolite is used in electrolytic extraction of Al from alumuna.Statement -2: It dissilves alumina
Last Answer : Statement -I :Cryolite is used in electrolytic extraction of Al from alumuna. Statement -2: It dissilves alumina
Description : Statement - 1 : `PbSiF_(6) + H_(2) SiF_(6)` + gelatine is taken as electrolyte in electrolytic refining of lead . Statement -2 : Discharge potential o
Last Answer : Statement - 1 : `PbSiF_(6) + H_(2) SiF_(6)` + gelatine is taken as electrolyte in electrolytic ... Statement-1 : is false , statement-2 : is true
Description : The function of adding cryolite in the electrolytic reduction of alumina by Hall-Heroult process is to
Last Answer : The function of adding cryolite in the electrolytic reduction of alumina by Hall-Heroult ... D. increase the electrical canductivity of alumina
Description : During electrolytic reduction of alumina , two auxiliary electrolytes X and Y are added to increase the electrical conductance and lower the temperatu
Last Answer : During electrolytic reduction of alumina , two auxiliary electrolytes X and Y are added to increase ... . alum and flourspar D. flourspar and bauxite
Description : For extraction of sodium from `NaC1`, the electrolytic mixture `Nac1+Na_(3)A1F_(6) +Cac1_(2)` is used. During extractions process, only sodium is depo
Last Answer : For extraction of sodium from `NaC1`, the electrolytic mixture `Nac1+Na_(3)A1F_(6) +Cac1_(2)` is used. During ... that of `K^(+)` and `Ca^(+2)` ions
Description : Electrolytic reduction of `Al_(2)O_(3)`. Electrolyte (`Al_(2)O_(3)+"cryolite")` Anode: Graphite rods. Coke powder is spreadded over the molten electro
Last Answer : Electrolytic reduction of `Al_(2)O_(3)`. Electrolyte (`Al_(2)O_(3)+"cryolite")` Anode: Graphite rods. ... of molten aluminium by air D. (a) both (b)
Description : Electrolytic reduction of `Al_(2)O_(3)`. Electrolyte (`Al_(2)O_(3)+"cryolite")` Anode: Graphite rods. The purpose of adding crylite is :
Last Answer : Electrolytic reduction of `Al_(2)O_(3)`. Electrolyte (`Al_(2)O_(3)+"cryolite")` Anode: Graphite rods. ... . to increase melting point of `Al_(2)O_(3)`
Description : Electrolytic reduction of `Al_(2)O_(3)`. Electrolyte (`Al_(2)O_(3)+"cryolite")` Anode: Graphite rods. What is wrong if anode is made of nickel instant
Last Answer : Electrolytic reduction of `Al_(2)O_(3)`. Electrolyte (`Al_(2)O_(3)+"cryolite")` Anode: Graphite ... CO D. Nickel May be affected by high temperature.
Description : The major role of flourspar, `CaF_(2)` which is added in small amount in the electrolytic reduction of `Al_(2)O_(3)` dissolved on fused cryolite in fu
Last Answer : The major role of flourspar, `CaF_(2)` which is added in small amount in the electrolytic reduction ... the rate of oxidation of carbon at the anode
Description : Which one of the following is true in electrolytic refining ?
Last Answer : Which one of the following is true in electrolytic refining ? A. impure metal is made cathode B. ... as anode D. both electrodes must be pure metal