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Which of the following pairs are not functional group isomers? I. .......................O.......................||CHX3−CHX2−CHX2−CHX2−C−H II. .................O.................||CHX3−CHX2−CHX2−C−H

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प्रश्न

Which of the following pairs are not functional group isomers?

I. \[\begin{array}{cc}
\phantom{.......................}\ce{O}\\
\phantom{.......................}||\\
\ce{CH3 - CH2 - CH2 - CH2 - C - H}
\end{array}\]
II. \[\begin{array}{cc}
\phantom{.................}\ce{O}\\
\phantom{.................}||\\
\ce{CH3 - CH2 - CH2 - C - H}
\end{array}\]
III. \[\begin{array}{cc}
\ce{CH3 - CH2 - C - CH2 - CH3}\\
\phantom{}||\\
\phantom{}\ce{O}
\end{array}\]
IV. \[\begin{array}{cc}
\ce{CH3 - CH - CH2 - C - H}\\
\phantom{...}|\phantom{............}||\phantom{}\\
\phantom{...}\ce{CH3}\phantom{.........}\ce{O}\phantom{}
\end{array}\]

(i) II and III

(ii) II and IV

(iii) I and IV

(iv) I and II

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उत्तर

(i) II and III

(iii) I and IV

Explanation:

Two or more compounds with same molecular formula but different functional groups are called functional isomers.In given compounds

I. Aldehydic group.

II. Ketonic group.

III. Ketonic group.

IV. Aldehydic group.

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अध्याय 12: Organic Chemistry Some Basic Principles and Techniques - Multiple Choice Questions (Type - I) [पृष्ठ १४९]

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एनसीईआरटी एक्झांप्लर Chemistry Exemplar [English] Class 11
अध्याय 12 Organic Chemistry Some Basic Principles and Techniques
Multiple Choice Questions (Type - I) | Q 20 | पृष्ठ १४९

संबंधित प्रश्न

Write IUPAC name of the product obtained by the ozonolysis of the following compound:

3,4-Dimethyl-hept-3-ene


Write IUPAC name of the product obtained by the ozonolysis of the following compound:

2-Ethylbut-1-ene 


Draw the cis and trans structures of hex-2-ene. Which isomer will have higher b.p. and why?


Find out the type of isomerism exhibited by the following pair.

\[\begin{array}{cc}
\ce{CH3 - CH - CH2 - CH3 and CH3 - CH2 - O - CH2 - CH3}\\|\phantom{...........................................}\\
\ce{OH}\phantom{.........................................}\end{array}\]


Find out the type of isomerism exhibited by the following pair.


Choose the correct option.

Which type of isomerism is possible in CH3 CHCHCH3?


Molecular formula of the functional isomer of methyl formate is ____________.


What type(s) of isomerism is(are) shown by [Co(NH3)4Br2]Cl?


But-1-ene and But-2-ene are examples of ____________.


The type of isomerism possible in 2-butene is ____________.


What is the relationship between the members of following pairs of structures? Are they structural or geometrical isomers or resonance contributors?


In which of the following, functional group isomerism is not possible?


Which of the following pairs are position isomers?

I. \[\begin{array}{cc}
\phantom{.......................}\ce{O}\\
\phantom{.......................}||\\
\ce{CH3 - CH2 - CH2 - CH2 - C - H}
\end{array}\]
II. \[\begin{array}{cc}
\phantom{.................}\ce{O}\\
\phantom{.................}||\\
\ce{CH3 - CH2 - CH2 - C - H}
\end{array}\]
III. \[\begin{array}{cc}
\ce{CH3 - CH2 - C - CH2 - CH3}\\
\phantom{}||\\
\phantom{}\ce{O}
\end{array}\]
IV. \[\begin{array}{cc}
\ce{CH3 - CH - CH2 - C - H}\\
\phantom{...}|\phantom{............}||\phantom{}\\
\phantom{...}\ce{CH3}\phantom{.........}\ce{O}\phantom{}
\end{array}\]

(i) I and II

(ii) II and III

(iii) II and IV

(iv) III and IV


Consider structures I to VII and answer the question:

I. CH3 – CH2 – CH2 – CH2 – OH
II. \[\begin{array}{cc}
\ce{CH3 - CH2 - CH - CH3}\\
\phantom{.....}|\\
\phantom{.......}\ce{OH}
\end{array}\]
III. \[\begin{array}{cc}
\phantom{...}\ce{CH3}\\
\phantom{}|\\
\ce{CH3 - C - CH3}\\
\phantom{}|\\
\phantom{..}\ce{OH}
\end{array}\]
IV. \[\begin{array}{cc}
\ce{CH3 - CH - CH2 - OH}\\
|\phantom{........}\\
\ce{CH3}\phantom{......}
\end{array}\]
V. CH3 – CH2 – O – CH2 – CH3
VI. CH3 – O – CH2 – CH2 – CH3
VII. \[\begin{array}{cc}
\ce{CH3 - O - CH - CH3}\\
\phantom{...}|\\
\phantom{......}\ce{CH3}
\end{array}\]

Identify the pairs of compounds which are functional group isomers.


Compounds with same molecular formula but differing in their structures are said to be structural isomers. What type of structural isomerism is shown by

CH3 – S – CH2 – CH2 – CH3

And 

\[\begin{array}{cc}
\phantom{.....................}\ce{CH3}\\
\phantom{................}/\\
\phantom{}\ce{CH3 - S - CH}\\
\phantom{...............}\backslash\\
\phantom{....................}\ce{CH3}
\end{array}\]


The molecules having dipole moment are:

(i) 2,2-Dimethylpropane

(ii) trans-Pent-2-ene

(iii) cis-Hex-3-ene

(iv) 2, 2, 3, 3 - Tetramethylbutane.


Tautomerism is exhibited by ______. 


Which of the following does NOT exhibit geometrical isomerism? 


Which type of isomerism can not be shown by benzaldoxime?


Acetamide is isomer of ______.


Which one of the following pairs are called position isomers?


How many structural isomers possible of the molecular formula C3H6O (excluding enol form)?


Compound with molecular formula C3H6O can show ______.


Which of the following pairs of compounds are positional isomers?


The number of geometrical isomers from [Co(NH3)3(NO2)3] is ______.


Which of the following pairs of compounds is an example of position isomerism?


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