(a) "Displacement reactions also play a key role in extracting metals in the middle of the reactivity seriesβ¦
(a) "Displacement reactions also play a key role in extracting metals in the middle of the reactivity series." Justify this statement with two examples. (b) Why can metals high up in the reactivity series not be obtained by reduction of their oxides by carbon ?
Solution
(a)
3 πππ2 (π ) + 4 π΄π(π ) β 3 ππ(π) + 2 π΄π2 π3 (π ) + βπππ‘
πΉπ2 π3 (π ) + 2 π΄π(π ) β 2 πΉπ(π) + π΄π2 π3 (π ) + βπππ‘
(Award marks if explained through statement or any other
reactions.)
(b)
Metals towards the top of the reactivity series (Na, Mg, Ca) have
more affinity for oxygen than carbon.