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Which of the following statements is not true for halogens?

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Chlorine has the highest electron-gain enthalpy.

All are oxidizing agents.

All show positive oxidation states.

All form monobasic oxyacids.

answer is C.

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Detailed Solution

Fluorine shows only one oxidation state and other halogens shows -ve and +ve oxidation states. Due to high electronegativity and small size, only Fluorine form one oxoacid that is HOF
Options (1), (2), (4) statements are correct.

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