Question

In The Electrolysis Of Water: (A) Identify the Kind of chemical reaction takes place. (B) Name The Gas Collected At The Cathode And The Anode. (B) Why Is The Volume Of Gas Collected At One Electron Is Double Of The Other. (D) Why Are A Few Drops Of Dil. H2SO4 Added To The Water?​

Answer 1

Answer:

A》Electrolytic decomposition may result when electric current is passed through an aqueous solution of a compound. A good example is the electrolysis of water. Electrolysis of water: Electrolysis of water is the decomposition of water into hydrogen and oxygen due to the passage of electric current through it.

 b) In the electrolysis of water, the gas collected at cathode is hydrogen and the gas collected at anode is oxygen

C)The gas which is collected in double amount is hydrogen. This is because water contains two molecules as compared to one molecule of oxygen.

D) to make the distilled water conducting.As sulphuric acid is a strong acid and it will dissociate into ions completely. And during electrolysis of water, as we add sulphuric acid, the number of ions increases and because of these ions, the solution become conducting.

Explanation:

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Answer 2

Explanation:

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• In the electrolysis of water, the gas collected at cathode is hydrogen and the gas collected at anode is oxygen.

• The gas which is collected in double the amount during the electrolysis of water is hydrogen. This is because water contains two parts of hydrogen element as compared to one part of oxygen element by volume.

• Pure water is a bad conductor of electricity. By adding drops of sulphuric acid we make it a good conductor of electricity.