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Select the correct answer from the list in bracket:
1. The cation discharged at the cathode most readily. [Fe2+, Cu2+, Pb2+, H1+]
2. The anion discharged at the anode with most difficulty. [SO42-, Br1-, NO31-,OH1-]
3. The metallic electrode which does not take part in an electrolytic reaction. [Cu, Ag, Fe, Ni]
4. The ion/s which is/are discharged during electrolysis of aq. CuSO4 using Cu electrode. [Cu2+, SO42-, H1+, OH1-]
5. A covalent compound which in aqueous state conducts electricity. [CCl4, CS2, NH3, C2H4]

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Answer

  1. The cation discharged at the cathode most readily — Cu2+
  2. The anion discharged at the anode with most difficulty — SO42-
  3. The metallic electrode which does not take part in an electrolytic reaction —Fe
  4. The ion which is discharged during electrolysis of aq. CuSO4 using Cu electrode — Cu2+
  5. A covalent compound which in aqueous state conducts electricity — NH3

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