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Question

Which of the following is ferromagnetic?


A

Fe,Co,Ni

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B

Cu,Ag,Au

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C

Ca,Sr,Ba

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D

Zn,Cd,Hg

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Solution

The correct option is A

Fe,Co,Ni


Explanation for correct option:

A. Fe,Co,Ni

Ferromangetic material:

  • The material that is strongly attracted by a magnetic field is known as Ferromagnetic materials.
  • Some examples of ferromagnetic materials are IronFe, CobaltCo, and Nickel Ni.

Paramagnetic material:

  • The material that is weakly attracted by a magnetic field is known as Paramagnetic material
  • Some examples of paramagnetic materials are ManganeseMn and AluminiumAl.

Diamagnetic material:

  • The material that is not strongly repelled by a magnetic field is known as Diamagnetic material.
  • Some examples of diamagnetic materials are Gold Au, Copper Cu, and Silver Ag

Explanation for incorrect options:

B. Cu,Ag,Au, these metals are paramagnetic in nature.

C. Ca is diamagnetic while SrandBa are paramagnetic.

D. Zn,Cd,Hg, these metals are diamagnetic in nature.

Hence, the correct option is A i.e. Fe,Co,Ni are ferromagnetic materials.


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