Concept:Paramagnetic substances have a small, positive magnetic susceptibility.
Explanation:Magnetic susceptibility (
χ) measures how strongly a material responds to an external magnetic field.
For a paramagnetic substance, the material is weakly attracted into the magnetic field.
This means
χ is positive, but its magnitude is very small compared to ferromagnetic substances.
Therefore, paramagnetic susceptibility is positive and small.
Answer:Option D – positive and small.