Q97 of 400 Page 136

In nature, metal A is found in a free state while metal B is found in the form of its compounds. Which of these two will be nearer to the top of the activity series of metals?

Element B will be nearer to the top of the activity series of metals, if in nature, metal A is found in a free state while metal B is found in the form of its compounds.

More from this chapter

All 400 →
95 CuSO4 (aq) + Fe (s) → FeSO4 (aq) + Cu (s)

FeSO4 (aq) + Zn (s) → ZnSO4 (aq) + Fe (s)


On the basis of the above reactions, indicate which is most reactive and which is least reactive metal out of zinc, copper and iron.

 96 Which of the following reactions will not occur ? Why not?

(a) MgSO4 (aq) + Cu (s) → CuSO4 (aq) + Mg (s)


(b) CuSO4 (aq) + Fe (s) → FeSO4 (aq) + Cu (s)


(c) MgSO4 (aq) + Fe (s) → FeSO4 (aq) + Mg (s)

 98 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? 99 Name a metal for each case:

(i) It does not react with cold as well as hot water but reacts with steam.


(ii) It does not react with any physical state of water.