(A) The highest oxidation state of Os is +8.
(R) Osmium is a 5d element

Options

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 but (R) is false
D. Both (A) and (R) are false

Answer

B

Explanation

Both (A) and (R) are true and (R) is not the correct explanation of (A)