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Identify the metal that froms colourless...

Identify the metal that froms colourless compounds.

A

Iron (Z = 26)

B

Chromium (Z = 24)

C

Vanadium (Z = 23)

D

Scandium (Z -21)

Text Solution

Verified by Experts

The correct Answer is:
D
d-block elements show +3 as the most common oxidation state. For scandium (Z =21), electronic configuration is `d^1s^2`. After the removal of +3 electrons
`(Sc^(3+))`, it acquires a stable configuration `(d^0)`.
Hence, it forms colourless compounds.
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