In the form of dichromate , `Cr(VI)` is a strong oxidising agent in acidic medium but Mo(VI) in `MoO_(3)` and W(VI) in `WO_(3)` are not because `"…..............."`.
A. Cr(VI) is more stable than Mo(VI) and W (VI)
B. Mo(VI) and W (VI) are more stable than Cr(VI).
C. Higher oxidation states of heavier members of group-6 of transition series are more stable.
D. Lower oxidation states of heavier members of group -6 of transition series are more stable.
