Q. 24

In the form of di 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.

Answer :

Higher oxidation states of heavier members of group 6 of transition series are more stable. So, Mo(VI) and W(VI) are more stable than Cr(VI). Because they are more stable, they will not get reduced(or act as oxidising agent). Cr(VI) on the other hand is not that stable and can easily get reduced to a lower oxidation state.

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