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Question
Draw a formula for the first five members of the homologous series beginning with the given compound.
CH3COCH3
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Solution
The first five members of each homologous series beginning with the given compounds are
CH3COCH3 : Propanone
CH3COCH2CH3 : Butanone
CH3COCH2CH2CH3 : Pentan-2-one
CH3COCH2CH2CH2CH3 : Hexan-2-one
CH3COCH2CH2CH2CH2CH3 : Heptan-2-one
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\[\begin{array}{cc}
\ce{CH3}\phantom{..................}\\
|\phantom{....................}\\
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|\phantom{....}|\phantom{................}\\
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\[\begin{array}{cc}
\ce{CH3\phantom{.................}}\\
|\phantom{....................}\\
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|\phantom{....}|\phantom{................}\\
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\[\begin{array}{cc}
\ce{CH3}\phantom{..................}\\
|\phantom{....................}\\
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|\phantom{....}|\phantom{................}\\
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\[\begin{array}{cc}
\ce{CH3}\phantom{..................}\\
|\phantom{....................}\\
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|\phantom{....}|\phantom{................}\\
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