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प्रश्न
Explain metamerism with suitable examples of ethers
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उत्तर
The property in which ethers have same molecular formula but different alkyl groups in their structures is called metamerism and the isomers obtained are called as metamers.
Examples :
e.g. C2H5 - O - C2H5 - Diethyl ether;
CH3 - O - C3H7 - Methyl n-propyl ether
In the above example both ethers are having same molecular formula i.e. C4H10 but different alkyl groups in their structure, so they are metamers of each other.
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\[\begin{array}{cc}
\ce{H3C - CH - CH2 - CH - CH - CH2 - CH3}\\
|\phantom{....................}|\phantom{.........}|\phantom{.............}\\
\ce{OH}\phantom{................}\ce{OH}\phantom{...}\ce{C{_2}H5}\phantom{.........}\\
\end{array}\]
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\[\begin{array}{cc}
\phantom{..}\ce{H}\phantom{...}\ce{CH3}\phantom{.}\ce{H}\phantom{..}\\
\phantom{}|\phantom{....}|\phantom{....}|\phantom{}\\
\ce{H - C - C - C - H}\\
\phantom{}|\phantom{....}|\phantom{....}|\phantom{}\\
\phantom{.}\ce{H}\phantom{...}\ce{OH}\phantom{.}\ce{H}\phantom{.}\\
\end{array}\]
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| (i) | ![]() |
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| (ii) | ![]() |
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| (iii) | ![]() |
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| (iv) | ![]() |
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\ce{CH3 - CH - O - CH2 - CH2 - CH3}\\
|\phantom{....................}\\
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\[\begin{array}{cc}
\phantom{..............}\ce{CH3}\\
\phantom{............}|\\
\ce{CH3 - CH - CH - C - CH3}\\
|\phantom{.....}|\phantom{......}|\\
\phantom{...}\ce{CH3}\phantom{.}\ce{OH}\phantom{...}\ce{CH3}
\end{array}\]
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\[\begin{array}{cc}
\phantom{................}\ce{CH3}\\
\phantom{.............}|\\
\ce{CH3 - CH - CH - C -CH3}\\
\phantom{.}|\phantom{......}|\phantom{......}|\\
\phantom{....}\ce{CH3\phantom{...}\ce{OH}\phantom{...}\ce{CH3}}\
\end{array}\]






