1. QUESTION 61 How many unpaired electrons will there be in a high-spin octahedral complex of
Fe(ID)? 2 O none of the above QUESTION 62 If a solution absorbs green light, what is its likely
color? O red O blue QUESTION 63 Click Save and Submit to save and submit. Click Save All
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Solution
61) High spin octahedral complex of Fe(II) -3d 7
4s 0
So first 3 electrons are filled in t 2g , then 2 electrons are filled in e g , the final two electrons are
paired with two electrons of t 2g . So the number of unpaired electrons is 3, 1 in t 2g and 2 in e g .
62) When Green light is absorbed, its complimentary colour Red as seen in the VIBGYOR circle
is emitted. So the colour of the solution is Red.