preference is given alphabetically that is Br is preferred
over Chlorine which is preferred over Fluorine which is
further preferred over Iodine.
So the name of the compound is 1-bromo,3chloro propane
You are right. In case of two substituent groups that with equal preference and equal locants in the various options that are possible, the one higher up the alphabetical order is supposed to be listed first and given the lower locant.
Hope it helped!
but i read in a book that preference should be given to the heavier one.is it correct?
how can it be 1 -bromo,4chloro propane...
shouldn't it be 1-bromo,3-chloro propane
it does not matter whether we write Bromo first or vice versa
but for sake of convenience we just take it in alphabetical order
i am afraid you are wrong......
according to iupac the substituents should always be arranged in
there is a system that is given by an authority...... and we are suppose to follow it......
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