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Ores and Minerals

Which element...

Question

Which element is present in Ruby as impurity?

A

C u

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B

C r

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C

A u

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D

Z n

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Solution

The correct option is A $C r$
Chromium (Cr) metal is present in Ruby as an impurity. Ruby has pink to blood-red colour. It is a gemstone. It is a variety of the mineral corundum (aluminium oxide).

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