Question

Iron exhibits the variable valences 2 & ___________

a) 1

b) 3

c) 4

d) 5​

Answer 1

Answer:

Iron exhibits the variable valences 2 & ___________

b) 3

Answer 2

Answer:

2

example:-

in the formation of ferrous oxide ,iron exhibits a

valency of +2 whereas in ferrice oxide it has a valency of +3 .this is termed variable valency

thank you