Organic Chemistry Basics - Result Question 154

####5. What is the IUPAC name of the following compound?

(2019 Main, 10 Jan II)

(a) 3-bromo-3-methyl-1,2-dimethylprop-1-ene

(b) 3-bromo-1,2-dimethylbut-1-ene

(c) 2-bromo-3-methylpent-3-ene

(d) 4-bromo-3-methylpent-2-ene

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Answer:

Correct Answer: 5. (b)

Solution:

  1. While naming the compound, alkene gets priority over functional group ( $-Br$ ) and numbering starts from alkene side. Hence, IUPAC name: 4-bromo-3-methyl pent-2-ene



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