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कर्नाटक बोर्ड पी.यू.सी.पीयूसी विज्ञान 2nd PUC Class 12

IUPAC name of the compound CHX3−CH−OCHX3|....CHX3.. is ______.

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प्रश्न

IUPAC name of the compound \[\begin{array}{cc}
\ce{CH3 - CH - OCH3}\\
\phantom{}|\phantom{....}\\
\phantom{}\ce{CH3}\phantom{..}
\end{array}\] is ______.

विकल्प

  • 1-methoxy-1-methylethane

  • 2-methoxy-2-methylethane

  • 2-methoxypropane

  • isopropylmethyl ether

MCQ
रिक्त स्थान भरें
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उत्तर

IUPAC name of the compound \[\begin{array}{cc}
\ce{CH3 - CH - OCH3}\\
\phantom{}|\phantom{....}\\
\phantom{}\ce{CH3}\phantom{..}
\end{array}\] is 2-methoxypropane.

Explanation:

Given molecule: \[\begin{array}{cc}
\ce{CH3 - CH - OCH3}\\
\phantom{}|\phantom{....}\\
\phantom{}\ce{CH3}\phantom{..}
\end{array}\] 

It is an ether ROR′. In naming ether, a smaller alkyl group among R and R' is treated as a side group as alkoxy and the other as alkane along with the position of the alkoxy group. Thus in the given molecule, it is the methoxy group at the second position of propane (alkane).

\[\begin{array}{cc}
\ce{\overset{1}{C}H3-\overset{2}{C}H-OCH3}\\
\phantom{}|\phantom{....}\\
\phantom{}\ce{\overset{3}{C}H3}\phantom{..}
\end{array}\] 

Thus its name is 2-methoxypropane.
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अध्याय 11: Alcohols, Phenols and Ethers - Multiple Choice Questions (Type - I) [पृष्ठ १५५]

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एनसीईआरटी एक्झांप्लर Chemistry Exemplar [English] Class 12
अध्याय 11 Alcohols, Phenols and Ethers
Multiple Choice Questions (Type - I) | Q 9 | पृष्ठ १५५

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\end{array}\]


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\end{array}\]


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\phantom{...............}\ce{CH3}\\
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