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Karnataka Board PUCPUC Science 2nd PUC Class 12

Explain the following with suitable examples: Paramagnetism

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Question

Explain the following with suitable examples:

Paramagnetism

Explain
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Solution

  1. The substances that are attracted by a magnetic field are called paramagnetic substances.
  2. Some examples of paramagnetic substances are O2, Cu2+, Fe3+, etc.
  3. Paramagnetic substances get magnetised in a magnetic field in the same direction but lose magnetism when the magnetic field is removed. 
  4. To undergo paramagnetism, a substance must have one or more unpaired electrons. This is because the unpaired electrons are attracted by a magnetic field, thereby causing paramagnetism.
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