Question

During electrolysis of acidified water using platinum electrodes, two types of anions migrate towards the anode but only one is discharged.
(a) Name the two anions.
(b) Write the cathode and anode reactions.
c) Why the electrolysis is considered as an example of catalysis ?
(d) A strip of copper is placed in four different colourless salt solutions - KNO3 , AgNO3 , Zn(NO3)2 ,Ca(NO3)2. 
Which one of the solutions will finally turn blue ​

Answer 1

Answer:

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Answer 2

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