The set having ions which are coloured and pa | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(B) For an ion to be coloured and paramagnetic,it must have unpaired electrons in its $d$-orbitals.$Cu^{2+}: [Ar] 3d^{9}$ (one unpaired $e^{-}$,colour

Vedclass · Accepted Answer

$Cu^{2+}, Cr^{3+}, Sc^{+}$

Vedclass · Answer

(B) For an ion to be coloured and paramagnetic,it must have unpaired electrons in its $d$-orbitals.$Cu^{2+}: [Ar] 3d^{9}$ (one unpaired $e^{-}$,coloured and paramagnetic).$Cr^{3+}: [Ar] 3d^{3}$ (three unpaired $e^{-}$,coloured and paramagnetic).$Sc^{+}: [Ar] 3d^{1} 4s^{1}$ (two unpaired $e^{-}$,coloured and paramagnetic).Therefore,the set containing $Cu^{2+}, Cr^{3+}, Sc^{+}$ consists of ions that are both coloured and paramagnetic.

The set having ions which are coloured and paramagnetic both is :

Similar Questions

The magnetic moment of $M^{x+}$ (atomic number $= 25$) is $\sqrt{15} \ BM$. The number of unpaired electrons and the value of $x$,respectively,are

Why are the $E^o$ values for $Mn^{2+}/Mn$,$Zn^{2+}/Zn$,and $Ni^{2+}/Ni$ more negative than expected? The table below provides the values:
| $E^o_{Mn^{2+}/Mn}$ | $E^o_{Zn^{2+}/Zn}$ | $E^o_{Ni^{2+}/Ni}$ |
| :--- | :--- | :--- |
| $-1.18 \ V$ | $-0.76 \ V$ | $-0.25 \ V$ |

Identify the pair of elements in which the number of electrons in the $(n-1)$ shell is the same.

Which of the following statements is $NOT$ true for transition metal elements?

Number of unpaired electrons in $Mn^{4+}$ is

Vedclass Test Series

Exam Paper Generator

Online Exam Module