1.

Which of the following formulae represents 2, 5-Dibromo-4-ethyl-2-heptenal according to IUPAC rules ?

Answer»

`CH_(3)-UNDERSET(BR)underset(|)(C)-CH=underset(C_(2)H_(5))underset(|"")(CH)-underset(Br)underset(|)(CH)-CH_(2)-CH_(2)-CH_(3)`
`CH_(3)-underset(Br)underset(|)(C)=CH-underset(C_(2)H_(5))underset(|)(CH)-underset(Br)underset(|)(CH)-CH_(2)-CH_(2)-CHO`
`CH_(3)-CH_(2)-underset(Br)underset(|)(CH)-underset(C_(2)H_(5))underset(|"")(CH)-CH=underset(Br)underset(|)(C)-CHO`
`CH_(3)-CH_(2)-underset(Br)underset(|)(CH)-underset(C_(2)H_(5))underset(|"")(CH)-CH=C-underset(Br)underset(|)(CH_(2))-CHO`.

Answer :C


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