During electro refining, Pure Metal is collected at

During electro refining, Pure Metal is collected at
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Cathode
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In electro-refining, the pure metal is deposited on – (1) vessel (2) electrolyte (3) cathode (4) anode

Description : In electro-refining, the pure metal is deposited on – (1) vessel (2) electrolyte (3) cathode (4) anode

Last Answer : (3) cathode Explanation: In electro-refining, the anodes consist of unrefined impure metal, and as the current passes through the acidic electrolyte the anodes are corroded into the solution so ... pure metal onto the cathodes. Electrolytic refining is used to extract impurities from crude metals.

In electro-refining, the pure metal is deposited on (1) vessel (2) electrolyte (3) cathode (4) anode

Description : In electro-refining, the pure metal is deposited on (1) vessel (2) electrolyte (3) cathode (4) anode

Last Answer : cathode

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

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.

Embedded system is______ A. An electronic system B. A pure mechanical system C. An electro-mechanical system D. (A) or (C)

Description : Embedded system is______ A. An electronic system B. A pure mechanical system C. An electro-mechanical system D. (A) or (C)

Last Answer : D. (A) or (C)

Embedded system is______ A. An electronic system B. A pure mechanical system C. An electro-mechanical system D. (A) or (C)

Description : Embedded system is______ A. An electronic system B. A pure mechanical system C. An electro-mechanical system D. (A) or (C)

Last Answer : D. (A) or (C) 

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

The ultrapure metal is obtained by - (1) Calcination (2) Sublimation (3) zone refining (4) None of these

Description : The ultrapure metal is obtained by - (1) Calcination (2) Sublimation (3) zone refining (4) None of these

Last Answer : (3) zone refining Explanation: The principal stages in the production of ultrapure metals are the preparation of pure chemical compounds, the reduction of the compounds to the elementary state and further purification.

Explain the process of zone refining. Name one metal refined by this method.

Description : Explain the process of zone refining. Name one metal refined by this method.

Last Answer : The apparatus used for zone refining consists of a circular heater fitted around the rod of impure metal at one end. The circular heater is slowly moved to the other end. At the heated zone, ... in solid metal passes into the adjacent molten part. A metal refined by zone refining is germanium.

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

Description : 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 ... of metal , reduction d) removal of impurities from ore , reduction of ore , refining of metal

Last Answer : d) removal of impurities from ore , reduction of ore , refining of metal

When a vehicle passes, TV reception gets distorted. This is because – (1) metal reflects radiowaves (2) spark plug creates electromagnetic disturbances (3) vehicle pollution affects the performance of the TV components (4) modern vehicles use electro ignition system

Description : When a vehicle passes, TV reception gets distorted. This is because – (1) metal reflects radiowaves (2) spark plug creates electromagnetic disturbances (3) vehicle pollution affects the performance of the TV components (4) modern vehicles use electro ignition system

Last Answer : (2) spark plug creates electromagnetic disturbances Explanation: This is caused due to the interference caused by the electromagnetic waves generated by a passing vehicle. These waves were within the same ... in which two waves superimpose to form a resultant wave of greater or lower amplitude.

When a vehicle passes, TV reception gets distorted. This is because – (1) metal reflects radiowaves (2) spark plug creates electromagnetic disturbances (3) vehicle pollution affects the performance of the TV components (4) modern vehicles use electro ignition system

Description : When a vehicle passes, TV reception gets distorted. This is because – (1) metal reflects radiowaves (2) spark plug creates electromagnetic disturbances (3) vehicle pollution affects the performance of the TV components (4) modern vehicles use electro ignition system

Last Answer : (2) spark plug creates electromagnetic disturbances Explanation: This is caused due to the interference caused by the electromagnetic waves generated by a passing vehicle. These waves were within the same ... in which two waves superimpose to form a resultant wave of greater or lower amplitude.

Which of the following brushes can be used for high values of current density ? (a) Metal graphite brushes (b) Hard carbon brushes (c) Electro-graphitic brushes (d) Natural graphite brushes

Description : Which of the following brushes can be used for high values of current density ? (a) Metal graphite brushes (b) Hard carbon brushes (c) Electro-graphitic brushes (d) Natural graphite brushes

Last Answer : (a) Metal graphite brushes

_____ brushes are fragile and cause excessive wear of commutator, (a) Natural graphite (b) Hard carbon (c) Electro graphitic (d) Metal graphite

Description : _____ brushes are fragile and cause excessive wear of commutator, (a) Natural graphite (b) Hard carbon (c) Electro graphitic (d) Metal graphite

Last Answer : (a) Natural graphite

Why was the metal Leonardo collected made into a cannon?

Description : Why was the metal Leonardo collected made into a cannon?

Last Answer : The duke needed to prepare for an invasion by the French

Soil samples are collected to? a Plastic bags b Metal containers c Gunny bags d Wooden boxes

Description : Soil samples are collected to? a Plastic bags b Metal containers c Gunny bags d Wooden boxes

Last Answer : a Plastic bags

One of the steps during refining of cane sugar consists of addition ofhydrated lime to the sugar syrup followed by carbonation of the resultingsolution. The purpose of this step is to(A) Adjust the pH of the syrup(B) Remove the coloring matter from the syrup(C) Reduce the viscosity of the syrup(D) Improve the rate of crystallisation of sugar

Description : One of the steps during refining of cane sugar consists of addition ofhydrated lime to the sugar syrup followed by carbonation of the resulting solution. The purpose of this step is to (A) Adjust ... (C) Reduce the viscosity of the syrup (D) Improve the rate of crystallisation of sugar

Last Answer : (A) Adjust the pH of the syrup

_______ is one of the product formed during refining of petroleum which is black and sticky solid used for making roads. a) paraffin wax b)asphalt c)kerosene d) gasoline

Description : _______ is one of the product formed during refining of petroleum which is black and sticky solid used for making roads. a) paraffin wax b)asphalt c)kerosene d) gasoline

Last Answer : b)asphalt

What does a private detective do before and during a court in order to prove someone is guilty with his collected evidence?

Description : What does a private detective do before and during a court in order to prove someone is guilty with his collected evidence?

Last Answer : answer:If he’s working for the prosecution, he needs to give all the evidence to the prosecuting attorney. If he’s working for the defense, he isn’t looking to accuse anyone; he’s looking for evidence to prove the accused didn’t do it, and he needs to give it to the attorney representing the client.

What are a group of compounds collected during fractional distillation?

Description : What are a group of compounds collected during fractional distillation?

Last Answer : These are components with lower boiling points.

How do I use proactiv's repairing lotion and refining mask?

Description : How do I use proactiv's repairing lotion and refining mask?

Last Answer : Wash your face with the cleanser and then gently wipe with the toner. Then the Repairing Lotion goes on. The Refining Mask is for blemishes. Scars are a whole other matter.

Where is India's first oil refining plant located? -General Knowledge

Description : Where is India's first oil refining plant located? -General Knowledge

Last Answer : Digboi Refinery Digboi Refinery - IndianOil The small town of Digboi in the remote north eastern corner of the country is the birth place of the Oil Industry in India. Digboi Refinery, commissioned on ... , is India's oldest operating refinery and one of the oldest operating refineries in the world.

Is analog computer used for petrol refining ?

Description : Is analog computer used for petrol refining ?

Last Answer : Yes,analog computer is used for petrol refining.

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

Statement - 1 : `PbSiF_(6) + H_(2) SiF_(6)` + gelatine is taken as electrolyte in electrolytic refining of lead . Statement -2 : Discharge potential o

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

How many of the following refining processes are correctly matched with their element ?

Description : How many of the following refining processes are correctly matched with their element ?

Last Answer : How many of the following refining processes are correctly matched with their element ?

Which of the following common element(s) is/are present in the anode mud in elctrolytic refining of copper ?

Description : Which of the following common element(s) is/are present in the anode mud in elctrolytic refining of copper ?

Last Answer : Which of the following common element(s) is/are present in the anode mud in elctrolytic refining of ... A. Selenium B. Tellurium C. Silver D. Gold

Which one of the following is true in electrolytic refining ?

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

Zone refining is based on the principle of

Description : Zone refining is based on the principle of

Last Answer : Zone refining is based on the principle of A. fractional distillation B. fractional ... C. partition coefficent D. chromatographic seperation

Assertion : Zone refining method is very useful for producing semiconductors. Reason : Semiconductors are of high purity.

Description : Assertion : Zone refining method is very useful for producing semiconductors. Reason : Semiconductors are of high purity.

Last Answer : Assertion : Zone refining method is very useful for producing semiconductors. Reason : Semiconductors are of high purity.

Zone refining is based on the principle that

Description : Zone refining is based on the principle that

Last Answer : Zone refining is based on the principle that A. impurities of low boiling metals can be ... volatile compound can be decomppose in pure metal.

Which is incorrectly matched for refining of element?

Description : Which is incorrectly matched for refining of element?

Last Answer : Which is incorrectly matched for refining of element? A. Si, Ge from impuritie` implies` zone ... Al from impurities Cu, Fe `implies` hoop method

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

The method of zone refining of metals is based on the principle of :

Description : The method of zone refining of metals is based on the principle of :

Last Answer : The method of zone refining of metals is based on the principle of : A. Greater mobility of the ... the impurity in the molten state than in the solid

Ultrapure elements are obtained in the following method of mental refining

Description : Ultrapure elements are obtained in the following method of mental refining

Last Answer : Ultrapure elements are obtained in the following method of mental refining A. Electrolysis B. Poling C. Liquation D. Distallation

Zone refining is a method to obtain

Description : Zone refining is a method to obtain

Last Answer : Zone refining is a method to obtain A. very high temperature B. ultra pure Al C. ultra pure metals D. ultra pure oxides

Zone refining method is used for refining

Description : Zone refining method is used for refining

Last Answer : Zone refining method is used for refining A. Al B. Ge C. Cu D. Fe

Which computer used for petrol refining?

Description : Which computer used for petrol refining?

Last Answer : Wediki

Match the following: A. Salem 1. Antibiotics B. Pimpri 2. Petroleum refining C. Perambur 3. Alloy steel D: Bongaigaon 4. Railway coaches A B C D (a) 3 1 4 2 (b) 4 1 3 2 (c) 3 2 1 4 (d) 1 2 4 3

Description : Match the following: A. Salem 1. Antibiotics B. Pimpri 2. Petroleum refining C. Perambur 3. Alloy steel D: Bongaigaon 4. Railway coaches A B C D (a) 3 1 4 2 (b) 4 1 3 2 (c) 3 2 1 4 (d) 1 2 4 3

Last Answer : Ans: (a)

The molecular structure of the straight-run gasoline is changed by a) reforming b) refining c) cracking d) boiling

Description : The molecular structure of the straight-run gasoline is changed by a) reforming b) refining c) cracking d) boiling

Last Answer : Answer: a Explanation: The molecular structure of the straight-run gasoline is changed by reforming and hydrocarbons are decomposed into smaller hydrocarbons by cracking.

Hydrocarbons are decomposed into smaller hydrocarbons by a) reforming b) refining c) cracking d) polymerization

Description : Hydrocarbons are decomposed into smaller hydrocarbons by a) reforming b) refining c) cracking d) polymerization

Last Answer : Answer: c Explanation: Hydrocarbons are decomposed into smaller hydrocarbons by cracking while the molecular structure of the straight-run gasoline is changed by reforming.

Consider the following processes: 1. Evaporation 2. Fractional distillation 3. Distillation 4. Filtration The process(es) involved in the refining of crude oil is/ are: (a) 3 only (b) 2 and 3 (c) 3 only (d) 1 only

Description : Consider the following processes: 1. Evaporation 2. Fractional distillation 3. Distillation 4. Filtration The process(es) involved in the refining of crude oil is/ are: (a) 3 only (b) 2 and 3 (c) 3 only (d) 1 only

Last Answer : Ans:(b)

Copper is refined by - (1) roasting (2) oxidation (3) electrolysis (4) zone refining

Description : Copper is refined by - (1) roasting (2) oxidation (3) electrolysis (4) zone refining

Last Answer : (1) roasting Explanation: Copper is refined by the method of roasting. In the roaster, the copper concentrate is partially oxidised to produce "calcine" and sulfur dioxide gas. In roasting, the ... ore concentrate is treated with very hot air. This process is generally applied to sulphide minerals.

Heating of a ore below its melting point in the absence of air is known as – (1) Refining (2) Calcination (3) Roasting (4) Smelting

Description : Heating of a ore below its melting point in the absence of air is known as – (1) Refining (2) Calcination (3) Roasting (4) Smelting

Last Answer : (2) Calcination Explanation: Calcination involves simple decomposition of ore on heating below its melting point usually in absence of air to produce new compounds having higher percentage of ... as removing the moisture, organic matter and volatile impurities. Calcination makes the ore porous.

Zone refining is used for the purification of?

Description : Zone refining is used for the purification of?

Last Answer : Ge

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

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

. __________ is not an important refinery process for upgrading the quality of lubricating oil.(A) Deoiling (B) Solvent refining (C) Clay treatment (D) Hydro-treatment

Description : . __________ is not an important refinery process for upgrading the quality of lubricating oil. (A) Deoiling (B) Solvent refining (C) Clay treatment (D) Hydro-treatment

Last Answer : (A) Deoiling

The colour of gasoline is an indication of its (A) Octane number (B) Lead susceptibility (C) Gum forming tendency & thoroughness of refining (D) None of these

Description : The colour of gasoline is an indication of its (A) Octane number (B) Lead susceptibility (C) Gum forming tendency & thoroughness of refining (D) None of these

Last Answer : (C) Gum forming tendency & thoroughness of refining