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MODEL PAPER 1 — Chemistry STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceChemistryMODEL PAPER 15 Marks
Question
Using Valence bond theory, explain the following in relation to the paramagnetic complex $[Mn(CN)_6]^{3-}$
$a.$ type of hybridisation
$b.$ magnetic moment value
$c.$ type of complex $-$ inner, outer orbital complex
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Answer


Image
$a.$ Type of hybridisation $- d^{2}sp^{3}$
$b.$ Magnetic moment value
$=\sqrt{n(n+2)}=\sqrt{2(2+2)}=2.87 \ BM$
$(n =$ no. of unpaired electrons$)$
$c.$ Type of complex $- $ inner orbital

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