If A, B1 C, D, E, F, G, H, I, J and K represent metals in the decreasing order of their reactivity, which one of them is most likely to occur in a free state in nature?
If A, B1 C, D, E, F, G, H, I, J and K represent metals in the decreasing order of their reactivity, then K is most likely to occur in a free state in nature.