Assertion (A) : Bismuth compounds are stable `+V` oxidation state than in `+III` oxidation state
Reason (R) : Inert pair effect is observed Bismuth compounds
A. Both (A) and (R) are true and (R) is the correct explanation of (A)
B. Both (A) and (R) are true and (R) is not the correct explanation of (A)
C. (A) is true and (R) is false
D. (A) is false but (R) is true
