HOW MANY UNPAIRED ELECTRONS ARE THERE IN CO MOLECULE.I HAVE READ THAT NUMBER OF UNPAIRED ELECTONS DO NOT CHANGE IN RESONATING STRUCTURES OF A MOLECULE.....DO ELECTRONS IN PI BOND OF CO MOLECULE OR ANY OTHER MOLECULE ARE CONSIDERED UNPIRED..

BUT CHECK THIS LINK: ,THE NO OF UNPAIRED ELECTONS ARE DIFFERENT. i.e 4,6 ,10 RESPECTIVELY...PLEASE HELP AND PROVIDE THE ENTIRE KEY CONCEPT OF RESONACE ....THANK YOU...

'x' gm of a compound A3B2C5 contains 'y' gm of A atoms

 

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how to represent the possible fischer projections for 2-bromohexane