Question

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(a) During the electrolysis of an aqueous solution of sulphuric acid between platinum electrodes, two types of anions
migrate towards the anode but only one of them is discharged:
(5)
Name the two anions
Name the main product of the discharge of anion at the anode and write the anode reaction
Name the product at the cathode and write the reaction.
(iv) Do you notice any change in colour. State why?
Why this electrolysis, is considered as an example of catalysis?
(b) Define Electroplating. Give any two reason for electroplating.
[3]
(c) Give reason why sodium chloride will conduct electricity only in fused or aqueous solution state.
[2]
Question 7
(a) Aluminium is extracted from its chief ore, bauxite. The ore is first purified and then the metal is extracted from it
by electrolytic reduction
[5]​

Answer 1

Answer:

आपकी खोज - hot_2021-04-16-19-18-33-49.png 4 Edit & Create (a) During the electrolysis of an aqueous ... - किसी दस्तावेज़ से नहीं मिली.

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Answer 2

Answer:

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