Question

2 - Bromo-1-chloro propene
how??​

Answer 1

Explanation:

double bond is a functional group with greater priority than halogens

chlorine and bromine are also functional groups but they are always prefix

so the numbering shud give double bod least number i.e 1

so the rightmost carbon is c1

chlorine is attached to c1 so it will get numbering as 1

bromine is attached to middle carbon i.e c2 so it will get numbering as 2

bromine comes first first in alphabetical order

so it is 2-bromo-1-chloro propene

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