In following pairs, the one in which both transition metal ions are colourless is :

Question

In following pairs, the one in which both transition metal ions are colourless is : (A) Sc 3+, Zn 2+ (B) Ti 4+, Cu 2+ (C) V 2+, Ti 3+ (D) Zn 2+, Mn 2+

Tardigrade Admin · Accepted Answer

<img class="img-fluid question-image" alt="image" src="https://cdn.tardigrade.in/img/question/chemistry/f0274f6279b0b189f0ffc432be8fa53e-.png" /> No d - d transitions in ions with d ° d 10 configuration. Therefore they are colourless.

Q. In following pairs, the one in which both transition metal ions are colourless is :

$S c^{3 +}, Z n^{2 +}$

$T i^{4 +}, C u^{2 +}$

$V^{2 +}, T i^{3 +}$

$Z n^{2 +}, M n^{2 +}$

No $d - d$ transitions in ions with $d^{\circ} & d^{10}$ configuration. Therefore they are colourless.

Q. In following pairs, the one in which both transition metal ions are colourless is :

Sc3+,Zn2+

Ti4+,Cu2+

V2+,Ti3+

Zn2+,Mn2+

No d−d transitions in ions with d∘&d10 configuration. Therefore they are colourless.

$S c^{3 +}, Z n^{2 +}$

$T i^{4 +}, C u^{2 +}$

$V^{2 +}, T i^{3 +}$

$Z n^{2 +}, M n^{2 +}$

No $d - d$ transitions in ions with $d^{\circ} & d^{10}$ configuration. Therefore they are colourless.