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Question

Identify the correct statements:

A
Fluorine is a super halogen.
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B
Iodine shows basic nature.
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C
AgF is insoluble in water.
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D
SCN is a pseudohalide.
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Solution

The correct options are
A Fluorine is a super halogen.
B Iodine shows basic nature.
D SCN is a pseudohalide.
Fluorine is super halogen since it is the most reactive and the most electronegative element in its family.

Iodine shows basic nature due to presence of lone pair electrons.

The pseudohalogens are polyatomic analogues of halogens, whose chemistry, resembling that of the true halogens, allows them to substitute for halogens in several classes of chemical compounds. Well-known pseudohalogen functional groups include cyanide, cyanate, thiocyanate, and azide.

AgF is highly soluble in water.

Hence, option A, B and D are correct.

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