Property of Reason for the transition element property

1) Colour of ion A) unpaired e– in
(n-1)d orbital
2) Variable B) Same crystal oxdation states structure

3) formation of alloys C) d-d- transition
4) paramagnetic D) high magnitude of
positive charge
E) slight energy between ns and (n–1)d shells

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1-C, 2-E, 3-A, 4-B

1-C, 2-E, 3-B, 4-A

1-C, 2-B, 3-E, 4-A

1-B, 2-A, 3-E, 4-B

answer is B.

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Detailed Solution

d-d- transition, slight energy between ns and (n–1)d shells
The same crystal oxidation states structure unpaired e– in (n-1)d orbital
Transition metals like iron and copper are alloys, which means they are made of two or more metals; the word mixture is sometimes used instead.
The alloy has properties different from those of the separate metals.

For example, copper and tin make pewter; copper and silver make "red brass"; copper and zinc make bronze.

Hence, the correct option is (B) 1-C, 2-E, 3-B, 4-A.

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