Published by:
CGP EDU Academic Team
Published on: August 12, 2026
In the given reaction sequence, Identify
A
and Write the IUPAC name of and
B
. Fe 3+ 
colourless(b) . Find out the spin only magnetic moment of B.
colourless(b) . Find out the spin only magnetic moment of B.
Text Solution
Verified by ExpertsThe correct answer is:
CHECK THE SOLUTION.
= Pentaaquathiocyanato-S-iron(III) ; = Hexafluoridoferrate(III) 5.93 B.M.
Sol. Fe 3+ 
blood red[Fe((H 2 O) 5 (SCN)] 2+ 
colourless(b) [Fe(F 6 )] 3– + SCN – + 5H 2 O.
Pentaaquathiocyanato-S-iron(III) ; Hexafluoridoferrate(III)
Fe 3+ - t 2g 1, 1, 1 e g 1,1 ; five unpaired electrons as F – being weak field ligand does not compel for pairing of electrons.
So, μ = 
= 5.93 B.M.
The magnetic moment value of is 5.93 B.M.
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