During Electrolysis of water, Hydrogen gas & Oxygen gas will get collected at which electrode? Also, in which test tube will the level of the water be low as compared to other test tube and why?
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Answer:
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Explanation:
How would you show that the gas obtained at cathode during electrolysis of water is hydrogen and that obtained at anode is oxygen?
Electrolysis is passing an electric current through a liquid containing ions so that decomposition reaction takes place. When an electric current is passed through acidified water, it decomposes to give hydrogen and oxygen gas. The hydrogen gas is obtained at the cathode and the oxygen gas is obtained at the anode.
Oxygen will collect at the positively charged electrode (anode) and hydrogen will collect at the negatively charged electrode (cathode). Note that hydrogen is positively charged in the H2O molecule, so it ends up at the negative electrode.
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when an electric is passed through acidified water, it decomposes to give hydrogen and oxygen gas. The hydrogen gas is obtained at the cathode and oxygen gas obtained at the anode .
oxygen will collect the positively charged electrode (cathode).Note that hydrogen is positively charged in the H2O molecules ,so it's end up at the negative electrode .
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