Question

In: Chemistry

Which transition metal is correctly matched with its highest oxidation state?? A) Cr, 3+? B) Mn,...

Which transition metal is correctly matched with its highest oxidation state??

A) Cr, 3+?

B) Mn, 5+?

C) Ti, 3+

?D) Sc, 3+

?E) Fe, 8+

Expert Solution

(A) The electronic configuration of Cr(At No:24) is : [Ar]4s¹ 3d⁵

So there is 1 electron in s orbital & 5 electrons in d orbital,so we can remove a maximum of 6 elctrons totally.

therefore the maximum oxidation state is +6

(B) The electronic configuration of Mn(At No:25) is : [Ar]4s² 3d⁵

So there is 2 electrons in s orbital & 5 electrons in d orbital,so we can remove a maximum of 7 elctrons totally.

therefore the maximum oxidation state is +7

(C) The electronic configuration of Ti(At No:22) is : [Ar]4s² 3d²

So there is 2 electrons in s orbital & 2 electrons in d orbital,so we can remove a maximum of 4 elctrons totally.

therefore the maximum oxidation state is +4

(D) The electronic configuration of Sc(At No:21) is : [Ar]4s² 3d¹

So there is 2 electrons in s orbital & 1 electron in d orbital,so we can remove a maximum of 3 elctrons totally.

therefore the maximum oxidation state is +3

(E) The electronic configuration of Fe(At No:26) is : [Ar]4s² 3d⁶

So there is 2 electrons in s orbital & 4 unpaired electrons in d orbital,so we can remove a maximum of 6 elctrons totally.

therefore the maximum oxidation state is +8

Therfore the correct answer is (D)

queen_honey_blossom answered 1 hour ago

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