Both sulphur and iron shows variable valency.so the
answer should be both B and C.
- ARKADYUTI BANDYOPADHYAY I agree with you,Sir!Upvote·0· Reply ·2014-09-05 20:19:11
Which one of the following has variable valency?
A. Chlorine
B. Sulphur
C. Iron
D. Sodium
Your answer : B
Correct answer : C
Why?
Both sulphur and iron shows variable valency.so the
answer should be both B and C.