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Q.

Most of the permanent magnets are made from :

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a

Cobalt

b

Chromium

c

Soft iron

d

Steel

answer is D.

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Detailed Solution

Magnets are made from magnetic metals – iron, nickel and cobalt. These are the only pure metals that can be turned into a permanent magnet. Steel is an alloy of iron and so

can also be made into a magnet

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