Worksheet: Electrochemical Series

In this worksheet, we will practice comparing the reducing and oxidizing power of species based on their positions in the reactivity series.

Q1:

In which of the following cells would the cathode be coated without a power input?

  • ATin electrode in aqueous zinc(II) sulfate.
  • BCopper electrode in aqueous tin(II) sulfate.
  • CIron electrode in aqueous copper(II) sulfate.
  • DSilver electrode in aqueous copper(II) sulfate.
  • ELead electrode in aqueous zinc(II) sulfate.

Q2:

Suppose you have three different metals, A, B, and C. When metals A and B come into contact, B corrodes and A does not corrode. When metals A and C come into contact, A corrodes and C does not corrode. Based on this information, what happens when B and C are brought into contact?

  • A B corrodes and C does not corrode.
  • BIt is not possible to predict without more information.
  • CNeither B nor C corrodes.
  • DBoth B and C corrode.
  • E C corrodes and B does not corrode.

Q3:

In which of the following sequences are the halogens arranged in order of decreasing oxidizing power?

  • A I , B r , C l , F
  • B B r , I , C l , F
  • C C l , B r , I , F
  • D C l , F , B r , I
  • E F , C l , B r , I

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