(B) The structure of acetyl acetone is $CH_3-CO-CH_2-CO-CH_3$.The parent chain contains $5$ carbon atoms,so the root name is pentane.There are two ket

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(B) The structure of acetyl acetone is $CH_3-CO-CH_2-CO-CH_3$.The parent chain contains $5$ carbon atoms,so the root name is pentane.There are two ketone groups at the $2^{nd}$ and $4^{th}$ positions.Therefore,the $IUPAC$ name is pentane-$2,4-$dione.

Class 11 Chemistry 8-1.Organic Chemistry : Classification and Nomenclature of Organic compounds Nomenclature of organic compounds

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The $IUPAC$ name of acetyl acetone is:

A
$2,5-$Pentane dione
B
$2,4-$Pentane dione
C
$2,4-$Hexane dione
D
$2,4-$Butane dione

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Class 11

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Chapter

8-1.Organic Chemistry : Classification and Nomenclature of Organic compounds

Subtopic

Nomenclature of organic compounds

Match the structures given in Column $I$ with their $IUPAC$ names in Column $II$.
Column $I$ (Structure) Column $II$ ($IUPAC$ Name)
$(A)$ $CH_3-CH=CH-CH_2Br$ $(p)$ $1$-Bromobut-$2$-ene
$(B)$ $CH_2=C(CH_3)-CH_2Br$ $(q)$ $3$-Bromo-$2$-methylpropene
$(C)$ $CH_3-C(CH_3)=CH-CH_2Br$ $(r)$ $4$-Bromopent-$2$-ene
$(D)$ $CH_3-CH=CH-CH_2CH_2Br$ $(s)$ $1$-Bromo-$2$-methylbut-$2$-ene

Column $I$ (Structure)	Column $II$ ($IUPAC$ Name)
$(A)$ $CH_3-CH=CH-CH_2Br$	$(p)$ $1$-Bromobut-$2$-ene
$(B)$ $CH_2=C(CH_3)-CH_2Br$	$(q)$ $3$-Bromo-$2$-methylpropene
$(C)$ $CH_3-C(CH_3)=CH-CH_2Br$	$(r)$ $4$-Bromopent-$2$-ene
$(D)$ $CH_3-CH=CH-CH_2CH_2Br$	$(s)$ $1$-Bromo-$2$-methylbut-$2$-ene

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