A) Al
B) Ca
C) Cr
D) Fe
Correct Answer: B
Solution :
Ca When metal react with other substances, they form positive ions. A more reactive metal will displace a less reactive metal. Reactivity series \[\operatorname{K} > Na > Ca > Mg > Al > Zn > Fe > Sn > Pb >\] \[\operatorname{Cu} > Ag > Au > Pt\]You need to login to perform this action.
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