Q. C7H8O has how many isomers ??
a.2
b.3
c.4
d.5
Sir do we have to keep making structure and count or is there an easier was out ? :)
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3 Answers
62your fears are genuine..
You have to keep making isomers..
there are some formulas but they dont work and are generally useless. I have never used them, nor do I suggest anyone to use them.
1what about the formula 2n where n is the number of chiral centres or stereogenic centres??
62That formula also fails a lot of times. Even in very simple 2 chiral center cases!
I wud again advice you not to use that formula and do it logically.
I know it is painful and direct formulas are like heaven ;)
but it is safe to do it by first principle.