Question

The order or reactivity of Na, Zn, Cu, Mg with oxygen can be
given as -

(a) Na > Ng>Zn > Cu
(b) Mg > Na >Zn > Cu
(c) Na > Zn > Mg > Cu
(d) Na > Cu > Mg > Zn​

Answer 1

Answer:

(a) Na>Mg>Zn>Cu

in reactivity series of Na, Zn, Cu, Mg with oxygen will be option a.

This is because sodium comes at first in reactivity series and then magnesium then zinc and then copper

Answer 2

the answer is (a) because sodium is more reactive than magnesium and so on