Question

most stable oxidation state of bismuth is

Answer 1

Hi there!

According to inert pair effect, which is shown in group 15 to group 17, it states that the lower group elements lower oxidation state is stable.

In elements from Nitrogen to Arsenic oxidation state +5 is stable whereas in Bismuth +3 oxidation state is stable.

So, Answer is +3 for Bismuth.

Answer 2

$\bold{ans:+3 \: oxidation \: state \: of \: bismuth}$

most stable oxidation state of bismuth is +3, in place of +5 oxidation state , this is because of poor shielding effect of d and f electrons , that restrict ns electrons to take part in the bond formation. { e.g., inert pair effect }.