Question

Which of the following substances are weakly attracted by a
magnetic field?
O2, H20, Cu2+, Fe3+, Gd, CrO2, Cr3+

Cu2+, Fe3+, CrO2, Cr3+
Fe3+, Gd, CrO2
H20, Fe3+, Cr3+
O2, Cu2+, Fe3+, Cr3+​

Answer 1

The substances which are weakly attracted by a magnetic field are, O2,Cu2+,Fe3+,Cr3+.

• There are different types of substances which are classified according to their magnetic characteristics.

• Similarly, there are many substances which have unpaired electrons , are known as the paramagnetic substances.

• These paramagnetic substances are weakly attracted by a magnetic field.

• O2,Cu2+,Fe3+,Cr3+ are paramagnetic substances. These substances are also attracted by a magnetic field,but the amount of attraction is very weak.