Question

IUPAC name of the give carbon compound

Answer 1

There is a seven-carbon chain, but it contains only one of the double bond carbon atoms. Consequently, the root name of this compound will be pentene. There is a propyl substituent on the inside double bond carbonatom (#2), so the IUPAC name is: 2-propyl-1-pentene.

Answer 2

$\huge{\texbf{\red{IUPAC NAME }}}$

2_ethyl_1,4_dimethylcyclohexane

$\huge{\texbf{\blue{POSITIONING OF SUBSTITUENTS }}}$

Number carbon chain from the side where each substituent gain minimum number So that if we add them if we add them it is their lowest possible sum .

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For example if we number these substituents from left side then first methyl will be on C number 1 and moving down , second methyl will be on C 4 and ethyl group on C 6

So add their position number

1 + 4 +6 = 11

Now

giving number from right side

methyl on C 1 , ethyl on C 2 and second methyl on C 4 . Now add these numbers

1 + 2 + 4 = 7

So this one numbering is more accurate

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U can also give ethyl position 1 and then move upward ,give methyl position 2 , in this way second methyl will gain position 5 , Now add these position numbers

1 + 2 +5 = 8

But this is wrong as this second one numbering after addition has less number means 7 so that is correct .

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$\huge{\texbf{\purple{NOMENCLATURE}}}$

Number substituents according to alphabetical order .

As ethyl means "e" comes first then methyl means " m" comes after "e" in alphabets so ethyl will be named first

So 2_ethyl_1,4_dimethylcyclohexane

Cyclo hexane because it is cyclic compound has is six carbon cycle having all single bonds so it is "hexane"
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