Question

In the electrolysis of water:
(a) Name the gas collected at anode and cathode.
(b) Why is volume of one gas collected at one electrode is double of another?
(c) Why are few drops of H2SO4 is added to water?

Answer 1

gas in anode is hydrogen and in cathode is oxygen
it is becoz the ratio of gasses is 1:2
to dry the gasses

Answer 2

ANSWER
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1. THE GAS COLLECTED AT THE ANODE AND CATHODE ARE
1. anode - oxygen
2. cathode - hydrogen

water is H2O here

2. we can see that there is 2 hydrogen atoms and one oxygen atom .therefor in the proportion of 2:1 . Therefore the gas collected in one is double the other


3. If H2SO4 is not added then there would not be a flow of ions therefore the reaction wont take place since current cant flow through it.