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Select the correct word from the words in brackets to complete the sentence:
1. The electrode at which anions donate excess electrons and are oxidized to neutral atoms is the …………… [anode/cathode]
2. On electrolysis, Ag1+ and H1+ ions migrate to the …………… [cathode/anode] and …………… [Ag1+/H1+] are discharged.
3. Electrolysis is a / an …………… [oxidation/reduction/redox] reaction in which reduction reaction takes place at the …………… [cathode/anode].
4. According to Arrhenius’s theory the amount of electricity conducted by the electrolyte depends on the …………… [nature/concentration] of the ions in solution.
5. Salts ionize in aq. soln. on passage of electric current to give …………… [negative/positive] ions other than H+ ions.

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Answer

  1. The electrode at which anions donate excess electrons and are oxidized to neutral atoms is the anode
  2. On electrolysis, Ag1+ and H1+ ions migrate to the cathode and Ag1+ are discharged.
  3. Electrolysis is a redox reaction in which reduction reaction takes place at the cathode .
  4. According to Arrhenius’s theory the amount of electricity conducted by the electrolyte depends on the concentration of the ions in solution.
  5. Salts ionize in aq. soln. on passage of electric current to give positive ions other than H+ ions.

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