The metalloids include the elements:

boron, silicon

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arsenic, polonium

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germanium, Tellurium

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all the above

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Solution

The correct option is D all the above
The metalloids are Boron, Silicon, Germanium, Arsenic, Antimony, Tellurium etc.
Thus all the given options are correct.

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Similar questions

Q18. Consider the following statements.

1. Arsenic (As) is an odourless and tasteless metalloid widely distributed in the earth’s crust.

2. Arsenic contamination is highly prevalent in Indus river area due to the use of deep tube wells for water supply.

3. The groundwater in these tube wells has high concentrations of arsenic in deeper level.

Which of the above statement(s) is/are correct?

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