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Standard XI

Chemistry

Functional Isomerism

Functional is...

Question

Functional isomers of $C H_{3} - C H_{2} - C H_{2} - C O O H$

$C H_{3} - C O - O - C H_{2} - C H_{3}$

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$C H_{3} - C H_{2} - C O - O - C H_{3}$

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$H - C O - O - C H - {(C H_{3})}_{2}$

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None of these

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Solution

The correct option is C
$H - C O - O - C H - {(C H_{3})}_{2}$

We know the conditions for functional isomers:

$\to$ Same molecular formula

$\to$ Different functional group

Option (a),(b) and (c) have same molecular fornula as $C H_{3} C H_{2} C O O H$ but all three have same functional group

(ester=R-CO-OR').But different $C H_{3} - C H_{2} - C H_{2} - C O O H$

Therefore,

Option (a),(b) and (c) are correct.

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Similar questions

Q. Name the functional groups present in the following compounds.
(i)

{C H}_{2} - C O - C H_{2} - {C H}_{2} - {C H}_{2} - {C H}_{3}

(ii)

{C H}_{3} - C H_{2} - {C H}_{2} - C O O H

(iii)

{C H}_{3} {- C H}_{2} - {C H}_{2} - {C H}_{2} - C H O

(iv)

{C H}_{3} - {C H}_{2} - O H

Functional isomers of $C H_{3} - C H_{2} - C H_{2} - C O O H$

Q. Given below are some organic compounds containing certain functional group.
i.

C H_{3} - C O O H

ii.

C H_{3} - C H_{2} - C H_{2} - O H

iii.

C H_{3} C H_{2} - C H_{2} . N H_{2}

iv.

C H_{3} - C H O

(a) Write the names of functional group of any of the two compounds given above.
(b) Write the IUPAC name of

C H_{3} - C H_{2} - C H_{2} - O H

.
(c) Give the structural formula and IUPAC name of functional group isomer of

C H_{3} - C H_{2} - C H_{2} - O H

Name the functional groups present in the following compounds: [5 MARKS]

1. ${CH}_{3} - {CH}_{2} - {CH}_{2} - OH$
2. ${CH}_{3} - {CH}_{2} - {CH}_{2} - COOH$
3. ${CH}_{3} - {CH}_{2} - CHO$
4. ${CH}_{3} - CO - {CH}_{2} - {CH}_{3}$
5. ${CH}_{3} - {CH}_{2} - CO-OH$

Q. Some organic compounds are given.
i.

C H_{3} - C H_{2} - C H_{2} - C H_{2} - C H_{3}

.
ii.

C H_{3} - C H_{2} - O - C H_{2} - C H_{3}

.
iii.

C H_{3} - C H_{2} - C H_{2} - C H_{2} - O H

.
iv.

C H_{3} - C H_{2} - C O O H

.
(a) Identify alcohol from these compounds.
(b) Write the IUPAC name of the alcohol.
(c) Of the above compounds, one compound is an isomer of another compound.
Find the isomer pair, and name the isomerism.

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Functional isomers of CH3−CH2−CH2−COOH

Functional isomers of $C H_{3} - C H_{2} - C H_{2} - C O O H$