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Occurrence of Metals

Which of the ...

Question

Which of the following are found in Earth's crust mainly as oxides, sulphides and carbonates?

A

Metals above in the activity series

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B

Metals in the middle of the activity series

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C

Metals at the bottom of the activity series

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D

All of these

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Solution

The correct option is B Metals in the middle of the activity series
The metals in the middle of the activity series are moderately reactive. They are found in the earth’s crust mainly as oxides, sulphides, or carbonates. Thus, option $B$ is correct.

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