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How is the metal used in an anode different from the metal used in cathode?
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∙ 12y ago
copper-zinc
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∙ 12y ago
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What parts of a battery are used by two different types of metals?
The anode and the cathode are the metal components that are in contact with the electrolyte in a battery.
How is the metal used in an anode different from the metal used in a cathode?
Anode is positive and cathode is negative. Cathode is the longest led frame. Anode is where the oxidation reaction takes place while cathode is where the reduction reaction takes place or in a galvanic corrosion the anode is the metal that corrodes while the cathode is protected.
What is the difference between electrolytic reduction and electrolytic refining under these heads a. electrodes b. electrolytes c. reaction at positive and negative electrodes?
The difference between electrolytic refining and electrolytic reduction is as follows: a. In electrolytic reduction graphite electrodes are used which are of same size. in electrolytic refining the anode is made of the impure metal which is to be purified and the cathode is made from that pure metal. initially the cathode is thick and the anode is very thin. b. the electrolyte used in electrolytic refining is the metal sulphate with acid (acid id added to increase the conductivity) which is aqueous in nature. whereas in electrolytic reduction molten chloride form of the solution is used. c. The impure metal at the anode displaces the metal from the aqueous solution and the these ions go to the cathode and attach to the cathode as they are now pure. basically the impure metal at the anode directly doesn't go to the cathode, its a indirect process. as the reaction goes on, the size of the anode reduces and finally disappears and the cathode becomes thick as all the impure metal is converted into pure metal. this happens in electrolytic refining. whereas in electrolytic reduction the metal from the molten solution deposits on the cathode and chlorine gas is evolved at the anode. general differences: a. in electrolytic reduction no anode mud is formed and in electrolytic refining anode mud is formed from the impurities oh the impure metal. b. electrolytic reduction is done to extract metals of high reactivity from their ores. electrlolytic refining is done to purify (refine) metals from their impure form.
Why positive rays called canal rays?
Anode Rays are called the canal rays as the cathode used is perforated and the anode rays pass through the holes or canals of The cathode opposite to the anode.
How is electrolysis used to purify metals?
TRUE!
In the production of anode rays why perforated cathode plate is used?
For the formation of the anode ray which is the opposit in direction of the cathod ray.
Which anode in electrolysis?
the anode (positive electrode) is the object that is going to be anodized. The cathode normally used is carbon rod that is inert.
Is it true that Electrons were discovered when an electric current was passed through gases at low pressures?
Yes, Sir J.J.Thompson did exactly that. ( although at that time the terms used for these phenomena were different). In 1897, Thompson heated a metal to produce cathode rays or electrons. These electrons were attracted towards an anode by providing a potential difference between the two electrodes. Between the cathode and electrode was air at very low pressure which did not stop these cathode rays. Sir Thompson studied these beams in the space between the anode and cathode.
What invention in the 1940 was first used in a car using 2 pieces of metal and is rechageable and is now smaller?
the invention was a tri-ode diode which is an electronic gas filled tube with an anode and a cathode and one more switching element. The anode is actually the negative plate and the cathode is the positive side. The third element is a switch for on and off.
How is the formation of anode and cathode rays?
Goldstein used a gas discharge tube which had a perforated cathode. When a high electrical potential of several thousand volts is applied between the cathode and anode, faint luminous "rays" are seen extending from the holes in the back of the cathode. These rays are beams of particles moving in a direction opposite to the "cathode rays," which are streams of electronswhich move toward the anode. Goldstein called these positive rays Kanalstrahlen, "channel rays" or "canal rays", because they were produced by the holes or channels in the cathode
What is a crookes tube?
crooks tube is the tube used by William crooks in his cathode ray experiment.it has a low pressure inside and it contains an anode and a cathode in each ends.the anode and the cathode are combined by a high voltage.
Why the anodes are used in cathode ray tube?
If there were no anode, the electrons emitted from the cathode would simply hang around it in a cloud, all mutually repelled but with no particular desire to go anywhere else. By introducing the anode and charging it positive, the "rays" are created, as each electron encounters the irresistable urge to get to the anode as soon as possible, as soon as it is free of the cathode.
