Which of the following substances is not para | vedclass

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

Question

(D) Paramagnetic substances are those that contain one or more unpaired electrons.$Cu^{+2}$ has electronic configuration $[Ar] 3d^9$,which contains $1

Vedclass · Accepted Answer

$MnO$

Vedclass · Answer

(D) Paramagnetic substances are those that contain one or more unpaired electrons.$Cu^{+2}$ has electronic configuration $[Ar] 3d^9$,which contains $1$ unpaired electron.$Fe^{+3}$ has electronic configuration $[Ar] 3d^5$,which contains $5$ unpaired electrons.$Cr^{+3}$ has electronic configuration $[Ar] 3d^3$,which contains $3$ unpaired electrons.$MnO$ contains $Mn^{+2}$ ion,which has electronic configuration $[Ar] 3d^5$. However,in the solid state,$MnO$ is an antiferromagnetic substance because the magnetic moments of the $Mn^{+2}$ ions are aligned in a way that they cancel each other out.

List-$I$	List-$II$
$(1) \ \text{Cr}$	$(A) \ [\text{Ar}] \ 3d^8 4s^0$
$(2) \ \text{Fe}^{2+}$	$(B) \ [\text{Ar}] \ 3d^{10} 4s^1$
$(3) \ \text{Ni}^{2+}$	$(C) \ [\text{Ar}] \ 3d^6 4s^0$
$(4) \ \text{Cu}$	$(D) \ [\text{Ar}] \ 3d^5 4s^1$
	$(E) \ [\text{Ar}] \ 3d^6 4s^2$

Which of the following substances is not paramagnetic?

Similar Questions

Which of the following triads has approximately equal size?

The general electronic configuration of transition elements is

Which metal is used to make alloy steel for armour plates,safes and helmets?

The electronic configuration (outermost) of $Mn^{2+}$ ion (atomic number of $Mn = 25$) in its ground state is

Vedclass Test Series

Exam Paper Generator

Online Exam Module