Question

Ferrous and Ferric ions have valency:
(a) +1 and +2 respectively
(b) +2 and +3 respectively
(c) -2 and 3 respectively
(d) +1 and +3 respectively​

Answer 1

Answer:

1. 3
2. 5
3. -1
4. 4
5. here is your answer

Answer 2

Answer:

answer 3

answer 5

answer -1

answer 4