Although Cr, Mo and W belong to the same group (group 6) Cr (VI) is a strong oxidizing agent while Mo (VI) and W (VI) are not. Why ?

In the form of dichromate, Cr(VI) is a strong oxidising agent in acidic medium but Mo(VI) in Mo0_(3) and W(VI) in W0_(3) are not because

In the form of dichromate, Cr(VI) is a strong oxidising agent in acidic medium but Mo(VI) in Mo0_(3) and W(VI) in W0_(3) are not because

Assertion : Cr(VI) in the form of dichromate in acidic medium is a strong oxidising agent where MoO_3 and WO_3 are not. Reason: In d-block elements higher oxidation states are favoured by heavier members.

Assertion : Cr(VI) in the form of dichromate in acidic medium is a strong oxidising agent where MoO_3 and WO_3 are not. Reason: In d-block elements higher oxidation states are favoured by heavier members.

Four statement of Cr and Mn are given below. (P). Cr^(2+) and Mn^(3+) have the same electronic configuration. (Q). Cr^(2+) is a reducing agent while Mn^(3+) in an oxidizing agent. (S). Both Cr and Mn are oxidizing agent. The correct statement are: