Question

Arrange the following according to the instructions given in brackets:-
i) K, Pb, Ca, Zn (in the increasing order of the reactivity)
ii) Mg2+, Cu2+, Nal+, H+ (in the order of preferential discharge at the cathode)
iii) Li, K, Na, H (in the decreasing order of their ionization potential)
iv) F, B, N, O (in the increasing order of electron affinity)
v) NO , Br1-, Cl-,90(in the order of preferential discharge at the anode)​

Answer 1

1. Pb Zn Ca K

3. Li Na K H

4. B N O F

Answer 2

Answer:

1. pb, Zn, Cu, K

2. Cu2+, H1+, Mg2+, Na1+

3. H, Li, Na, K

4. B, N, O, F

5. ?

Hope you are helpful with this answer.