Answer:
(a) (i)
(ii) is
interhalogen compound Br and F both complete their octets.
(b) [1]
(ii) [1]
(iii)
[1]
Or
(a) (i)
[1]
(ii) FE
(III) is reduced to Fe (II)
(b) (i) has two ion
sable H and is thus it is a dibasic acid.
(ii) Because
F is the most electronegative element of the halogen family as well as in the
whole Periodic Table. It only formsand not. Thus it
is never as the central atom in interhalogen compounds. Also it lacks d-orbital
in which electrons can be expanded to give valency more than 1. Cl, Br, I with
d-orbital can expand its valency to +1,+3,+5,+7
[1]
(iii) They
have only weak dispersion forces being monoatomic in nature. Thus, they have
low boiling points. [1]
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