(i) state your observation when electric current is passed through acidulated water contained in voltmeter such that the electrode has been covered by a test tube containing water.
(ii) How will you test the gas evolved?
Answers
Answered by
14
Explanation:
1) (a) Tiny bubbles of colourless gas is formed on each electrode.
(b) these bubbles of colourless gas rise up in the test tubes. they collect in the form of colourless gases and in doing so displaces the water in the downward direction.
2) The gas which collects at cathode is hydrogen. it can be tested as follows:
Lighting a candle
wooden splint
Answered by
2
Answer: it will be broken down into hydrogen and oxygen ions.
2H2O => 2H2 + O2
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