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Variation of Metallic Properties

All are non-m...

Question

All are non-metals except :

A

hydrogen

(H_{2})

and carbon (C)

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B

potassium (K)

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C

inert gases (helium, neon and argon)

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D

sulphur (S), phosphorus (P), and fluorine (F)

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Solution

The correct option is A potassium (K)
Potassium is alkali metal present in group I of the periodic table.

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