Which one of the following ions will give a coloured solution?

Question

Which one of the following ions will give a coloured solution? (A) Cu+ (B) Fe2 + (C) Zn2 + (D) Ag+

Tardigrade Admin · Accepted Answer

Since Fe2 + has unpaired electrons so, d-d transitions would take place and hence, its solution would be coloured. Cu+ arrow 3d10 Fe2 + arrow 3d6 Zn2 + arrow 3d10 Ag+ arrow 4d10

Q. Which one of the following ions will give a coloured solution?

$C u^{+}$

$F e^{2 +}$

$Z n^{2 +}$

$A g^{+}$

Since $F e^{2 +}$ has unpaired electrons so, d-d transitions would take place and hence, its solution would be coloured.
$C u^{+} \to 3 d^{10}$
$F e^{2 +} \to 3 d^{6}$
$Z n^{2 +} \to 3 d^{10}$
$A g^{+} \to 4 d^{10}$

Q. Which one of the following ions will give a coloured solution?

Cu+

Fe2+

Zn2+

Ag+

Since Fe2+ has unpaired electrons so, d-d transitions would take place and hence, its solution would be coloured. Cu+→3d10 Fe2+→3d6 Zn2+→3d10 Ag+→4d10

$C u^{+}$

$F e^{2 +}$

$Z n^{2 +}$

$A g^{+}$

Since $F e^{2 +}$ has unpaired electrons so, d-d transitions would take place and hence, its solution would be coloured.
$C u^{+} \to 3 d^{10}$
$F e^{2 +} \to 3 d^{6}$
$Z n^{2 +} \to 3 d^{10}$
$A g^{+} \to 4 d^{10}$