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Which of the following is not correct?

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Halogens have high electronegative and gain electrons easily, so these are good oxidising agents.

Alkali metals have low electronegativities and lose electron easily, so these are good reducing agents.

Chemically, middle elements of each period show very high reactivity than alkali metals as well as halogens.

Most of the elements show variable oxidation numbers but fluorine shows -1 oxidation state only.

answer is C.

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Chemically, middle elements of each period show very high reactivity than alkali metals as well as halogens.

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