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4(a) Which row shows the products formed at the anode and at the cathode when molten zinc chloride is electrolysed? | product at anode | product at cathode | |:------------------:|:--------------------:| | A | zinc | | B | hydrogen | | C | zinc | | D | hydrogen | (ii) Which of the following is the reason why molten zinc chloride is an electrolyte? A it contains molecules that can move B it has a giant structure C it contains delocalised electrons D it contains ions that can move (b) Copper sulfate solution was electrolysed using copper electrodes - Edexcel - GCSE Chemistry Combined Science - Question 4 - 2018 - Paper 1
Question 4
4(a) Which row shows the products formed at the anode and at the cathode when molten zinc chloride is electrolysed? | product at anode | product at cathode | |:... show full transcript
Worked Solution & Example Answer:4(a) Which row shows the products formed at the anode and at the cathode when molten zinc chloride is electrolysed? | product at anode | product at cathode | |:------------------:|:--------------------:| | A | zinc | | B | hydrogen | | C | zinc | | D | hydrogen | (ii) Which of the following is the reason why molten zinc chloride is an electrolyte? A it contains molecules that can move B it has a giant structure C it contains delocalised electrons D it contains ions that can move (b) Copper sulfate solution was electrolysed using copper electrodes - Edexcel - GCSE Chemistry Combined Science - Question 4 - 2018 - Paper 1
Step 1
Which row shows the products formed at the anode and at the cathode when molten zinc chloride is electrolysed?
Answer
The correct answer is C: chlorine at the anode and zinc at the cathode. During the electrolysis of molten zinc chloride, chloride ions move to the anode where oxidation occurs to form chlorine gas. At the cathode, zinc ions are reduced to form zinc metal.
Step 2