Considering H2O as a weak field ligand, the number of unpaired electrons in [Mn(H2O )6]2+ will be (At. no. of Mn = 25)

Question

Considering H2O as a weak field ligand, the number of unpaired electrons in [Mn(H2O )6]2+ will be (At. no. of Mn = 25) (A) 3 (B) 5 (C) 2 (D) 4

Tardigrade Admin · Accepted Answer

The oxidation number of manganese of [ Mn ( H 2 O )6]2+ is +2. The electronic configuration of Mn 2+ is [ Ar ] 3 d 5 and hence the number of unpaired electrons are five.

Q. Considering $H_{2} O$ as a weak field ligand, the number of unpaired electrons in $[M n (H_{2} O)_{6}]^{2 +}$ will be (At. no. of $M n = 25$ )

3

5

2

4

The oxidation number of manganese of $[M n (H_{2} O)_{6}]^{2 +}$ is $+ 2$ .
The electronic configuration of $M n^{2 +}$ is $[A r] 3 d^{5}$ and hence the number of unpaired electrons are five.

Q. Considering H2​O as a weak field ligand, the number of unpaired electrons in [Mn(H2​O)6​]2+ will be (At. no. of Mn=25)

3

5

2

4

The oxidation number of manganese of [Mn(H2​O)6​]2+ is +2. The electronic configuration of Mn2+ is [Ar]3d5 and hence the number of unpaired electrons are five.

Q. Considering $H_{2} O$ as a weak field ligand, the number of unpaired electrons in $[M n (H_{2} O)_{6}]^{2 +}$ will be (At. no. of $M n = 25$ )

The oxidation number of manganese of $[M n (H_{2} O)_{6}]^{2 +}$ is $+ 2$ .
The electronic configuration of $M n^{2 +}$ is $[A r] 3 d^{5}$ and hence the number of unpaired electrons are five.