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Fe^(3+)overset(SNC^(Θ)("Excess"))rarrund...

`Fe^(3+)overset(SNC^(Θ)("Excess"))rarrunderset("Bloodre"d)(A)overset(F^(ΘExcess))rarrunderset("Colourless")(B)`
Identify `A` and `B`
Write the `IUPAC` name of `A` and `B`

Text Solution

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`Fe^(3+)unerset(excess)(SCN)^(-)overset(aqueous)tounderset((A)"(blood red))[Fe(SCN)(H_(2)O)_(5)]]^(2+)``unerset((A)("blood red"))([Fe(SCN)(H_(2)O)_(5)]^(2+))
`unerset(excess)(6F^(-))tounerset((B)("colour less")([FeF_(6)]^(3-))+SCN^(-)+5H_(2)O`
(a) Pentaaquathiocyanatoiron (III)ion
hexafluoroferrate (III) (b) Magnetic moment = sqrt(n(n+2)) = sqrt35 = 5.92 B.M., where n = number of unpaired electrons which is equal to 5 here.
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