During electrolysis of water, what gas is evolved fro the cathode?

During electrolysis of water, what gas is evolved fro the cathode?
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ANSWER: HYDROGEN
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(3) made cathode and a pure nickel red, the anode Explanation: Electroplating is the deposition by electrolysis of a coating of metal upon a conducting surface. The simplest system makes the object to be plated the negative electrode (cathode) or plate in a galvanic couple. Thus a spoon or other object may be connected by a wire to a plate of nickel. The process that occurs on the spoon is called reduction and, therefore, the spoon is also referred to as a cathode.

Description : (3) made cathode and a pure nickel red, the anode Explanation: Electroplating is the deposition by electrolysis of a coating of metal upon a conducting surface. The simplest system makes the object to be ... on the spoon is called reduction and, therefore, the spoon is also referred to as a cathode.

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Electrolysis of an aqueous solution of copper sulphate using copper electrodes gives (1) Copper at eathode and oxygen at anode. (2) Copper at anode and oxygen at cathode. (3) Copper at cathode and anodes dissolve to give copper. (4) Hydrogen at cathode and oxygen at anode.

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What substance is produced at the cathode in the electrolysis of molten sodium chloride?

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When lime juice is dropped on baking soda, brisk effervescence takes place because the gas evolved is (1) Hydrogen (2) Oxygen (3) Carbon dioxide (4) All of them

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One complete to and fro motion of the particle about its mean position is called

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Name the gelatin-like substance which is prepared fro various species of red algae growing in Asiatic waters. The prepared product appears in the form of cakes, coarse granules, long shreds or in thin sheets. It is used extensively alone or in combination with various nutritive substances, as a medium for culturing bacteria and various fungi

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How could we prevent H+ ions to be discharged first than Na+ during electrolysis of aqueous solution of NaCl?

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During electrolysis of aqeous solution of NaCl, there are two type of anions are present Cl- and –OH, Cl- is discharged first than –OH,although it is present below Cl- in electrochemical series. Give reason.

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Why carbon electrode is used during electrolysis of Nacl, instead of Pt electrode?

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During the electrolysis of a dilute aqueous solution of sulfuric acid, what happens to the sulfuric acid concentration?

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During photosynthesis in plants, the gas evolved is - (1) Carbon dioxide (2) Nitrogen (3) Oxygen (4) Hydrogen

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The main type of sludge gas evolved during sewage treatment in Imhoff tank is (A) CO2 (B) CH4 (C) CO (D) H2

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During photosynthesis in plants, the gas evolved is (1) Carbon dioxide (2) Nitrogen (3) Oxygen (4) Hydrogen

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Why is the amount of gas collected in one of the test tubes in text book Activity 1.7 (i.e., electrolysis of water) double of the amount collected in the other? Name this gas. -Chemistry-10

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Electricity is passed through water in electrolysis and two gases are formed. If one gas has a boiling point of -183 degrees and other has a boiling point of -253 degrees what are the gasses?

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Which of the following is the costliest source of hydrogen needed for ammonia manufacture under Indian condition? (A) Electrolysis of water (B) Cryogenic removal of H2 from coke oven gas (C) Steam reforming of naphtha (D) Natural gas cracking

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Commercial production of hydrogen for the manufacture of nitrogenous fertilisers is done by (A) Steam reforming of naphtha and cracking of natural gas (B) Electrolysis of water (C) Cryogenic separation of hydrogen from coke oven gas (D) All (A), (B) and (C)

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Last Answer : (D) All (A), (B) and (C)

Which of the following is the costliest method for commercial production of hydrogen for ammonia synthesis? (A) H2 separation from coke oven gas(B) Steam reforming of naphtha(C) Cracking of natural gas(D) Electrolysis of water

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Hydrogen gas is not produced commercially (for nitrogenous fertiliser manufacture) by (A) Iron-steam reaction (B) Electrolysis of water (C) Steam reforming of naphtha (D) Its cryogenic separation from coke oven gas

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