Question

which of the following cannot be attracted by a magnet?
a. Aluminium
b. Cobalt
c. Nickel
d. iron




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Answer 1

Answer:

nickel

Explanation:

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Answer 2

a. Aluminium cannot be attracted by the magnet.

• Among the given options, aluminium is paramagnetic. The paramagnetic elements do not have a filled outermost shell.
• Rather they have unpaired electrons present in their outermost shell.
• These unpaired electrons obstruct the magnetic field making the elements weakly magnetic.
• On the other hand, nickel, cobalt and iron and ferromagnetic objects.
• These substances show strong magnetic behaviour in a magnetic field.