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Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
Priyanshu kumar
for confusion in option B...read my explanation...as you know here iron has given 3d6 configuration...that iron has oxidation state of +2...so you know chlorine has unit negative charge and cyano group has too unit negative charge ...when you calculate these you find O2 has minus 1 charge...so this superoxido...and by M.O diagram you know O2- has bond order of 1.5 and 02 has 2 bond order..so bond order decreases that's why bond length increases
Superoxide is paramagnetic ? Priyanshu Sir
yes...
1 unpaired electron
Then complex should be paramagnetic Sir ?
yes sumon if you consider the complex as a whole... it has t2g6 eg0...no unpaired electrons.so diamagnetic but if you consider O2- as it has one unpaired electrons so paramagnetic...in some book it is given dia and some book para...
Please send reference Sir for its paramagnetic nature