Question

(i) Pb → Pb2+ + 2e-
(iii) A3+ + e-1 → A2+
(ii) Fe2+
e- → Fe3+
(iv) Cu → Cu2+,state which are reduction reaction and oxidation​

Answer 1

Answer:

(i) Its oxidation reaction since lead loses 2 electrons to form Pb2+.

(ii) Its reduction reaction since A3+ ion gains on electron to form A2+ ion.

(iii) Its oxidation reaction since ferrous ion loses one electron to form ferric ion.

( the electron must be on the right side of the arrow)

(iv) Its oxidation reaction since copper loses 2 electrons to form cuprous ion.  

Hope this answer helps you.

Answer 2

Answer:

This is the picture of your solution

Explanation: