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Answer the following Why salts of Sc3⊕, Ti4⊕, V5⊕ are colourless? - Chemistry

Short Note

Answer the following

Why salts of Sc3⊕, Ti4⊕, V5⊕ are colourless?

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Solution

i. Condensed electronic configurations of Sc3+, Ti4+, V5+ are: Sc3+: [Ar] 3d0 ; Ti4+: [Ar] 3d0 ; V5+: [Ar] 3d0

ii. The ions Sc3+, Ti4+ and V5+ have completely empty d-orbitals i.e., no unpaired electrons are present. Thus, their salts are colourless, as d-d transitions are not possible.

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Balbharati Chemistry 12th Standard HSC for Maharashtra State Board
Chapter 8 Transition and Inner transition Elements
Exercise | Q 2.03 | Page 191
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