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Which combination correctly matches the two processes described in the notes for a galvanic cell?Read the answer and worked solution →The potential developed between the zinc rod and the solution due to its tendency to undergo oxidation is calledRead the answer and worked solution →According to the World Health Organisation (WHO), reproductive health means a total well-being in all of the following aspects EXCEPT:Read the answer and worked solution →India initiated family planning programmes at a national level in the year:Read the answer and worked solution →

Worked practice questions

Which combination correctly matches the two processes described in the notes for a galvanic cell?

  1. Anode: reduction; Cathode: oxidation
  2. Anode: oxidation; Cathode: reduction
  3. Both electrodes: oxidation only
  4. Both electrodes: reduction only
Show answer and solution

Correct answer: B. Anode: oxidation; Cathode: reduction

The notes identify zinc oxidation at the anode and copper ion reduction as the reduction process. **Thus, in a galvanic cell, oxidation occurs at the anode and reduction occurs at the cathode.**

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The potential developed between the zinc rod and the solution due to its tendency to undergo oxidation is called

  1. reduction potential
  2. oxidation potential
  3. ionic mobility
  4. transport number
Show answer and solution

Correct answer: B. oxidation potential

The notes explicitly define the potential developed between the rod and the solution in this case as oxidation potential, represented by $E(Zn/Zn^{2+})$.

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According to the World Health Organisation (WHO), reproductive health means a total well-being in all of the following aspects EXCEPT:

  1. Genetic
  2. Physical
  3. Behavioural and social
  4. Emotional
Show answer and solution

Correct answer: A. Genetic

WHO defines reproductive health as total well-being in **physical, emotional, behavioural and social** aspects of reproduction. Genetic well-being is not part of this definition.

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