A) I and III only
B) I and IV only
C) II and IV only
D) III and IV only
Correct Answer: D
Solution :
Zinc and aluminium are more reactive than iron thus, can displace iron from iron sulphate solution but copper is less reactive than iron thus, will not show any reaction. \[Z{{n}_{(s)}}+FeS{{O}_{4(aq)}}\xrightarrow{{}}ZnS{{O}_{4(aq)}}+F{{e}_{(s)}}\] \[2A{{l}_{(s)}}+3FeS{{O}_{4(aq)}}\xrightarrow{{}}A{{l}_{2}}{{(S{{O}_{4}})}_{3(aq)}}+3F{{e}_{(s)}}\]
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