CSEC Chemistry · May/June 2010 · Paper 1 · Question Q27
Which of the following pairs of reactions would you expect to take place?
I. \text{Zn(s)} + \text{Mg}^{2+}\text{(aq)} \rightarrow \text{Mg(s)} + \text{Zn}^{2+}\text{(aq)}
II. \text{Zn(s)} + \text{Cu}^{2+}\text{(aq)} \rightarrow \text{Cu(s)} + \text{Zn}^{2+}\text{(aq)}
III. \text{Mg(s)} + \text{Cu}^{2+}\text{(aq)} \rightarrow \text{Cu(s)} + \text{Mg}^{2+}\text{(aq)}
IV. \text{Cu(s)} + \text{Mg}^{2+}\text{(aq)} \rightarrow \text{Mg(s)} + \text{Cu}^{2+}\text{(aq)}
- (A)I and III only
- (B)II and III only
- (C)II and IV only
- (D)III and IV only
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