Arrange the following metal in the decreasing chemical activity series?
(i) Potassium
(ii) Magnesium
(iii) Gold
(iv) Iron
Correct Options are:
1
(i), (ii), (iii) and (iv)
2
(i), (iii), (iv) and (ii)
3
(i), (ii), (iv) and (iii)
4
(i), (iv), (ii) and (iii)