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Redox and electrochemistry — Question 18

QCAA 2024, Paper 1 · 1 mark

Q18 · 2024 · Paper 1Unclassified1 mark

QUESTION 18

The electrode and electrolyte solutions of four half-cells are shown.

Half-cell

Electrode

Electrolyte solution (1.0 M)

1

Cu

CuNO3(aq)

2

Fe

Fe(NO3)2(aq)

3

Al

Al(NO3)3(aq)

4

Pt

Fe(NO3)3(aq)

Determine which two half-cells would produce the largest potential difference (V) under standard conditions when combined to construct a voltaic cell.

(A) 4 and 1

(B) 1 and 2

(C) 2 and 3

(D) 3 and 4

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