A) All but fluorine show positive oxidation states
B) All are oxidizing agents
C) All form monobasic oxyacid
D) Chlorine has the highest electron-gain enthalpy
Correct Answer: A
Solution :
[a] Due to high electronegativity and small size, F forms only one oxoacid, HOF known as Fluoric (I) acid. Oxidation number of F is +1 in HOF.
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