Chemistry · Oct / Nov 2017 · Paper 12 · Question 17
5070Electrolysis
Three different solutions were electrolysed using inert electrodes. solution 1 aqueous sodium chloride solution 2 concentrated hydrochloric acid solution 3 dilute sulfuric acid Which solutions produce hydrogen at the negative electrode?
- A1, 2 and 3
- B1 and 2 only
- C1 only
- D2 and 3 only
As printed in the paper
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Correct answer: A. 1, 2 and 3
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