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

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Solution

(a) i. $C H_{3} - C O O H$ (COOH group - carboxylic acid)
i. (ii) $C H_{3} - C H_{2} - C H_{2} - O H$ (OH group - Alcohol)
ii. (iii) $C H_{3} C H_{2} - C H_{2} . N H_{2}$ ( $N H_{2}$ group - Amine)
iii. (iv) $C H_{3} - C H O$ (CHO group - Aldehyde)
(b) Propan -1 - ol
(c) $C H_{3} - C H_{2} - O - C H_{3}$ : Methoxyethane

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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.

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

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

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

Two organic compounds are given,

(a)

What is the name of the functional group contained in these compounds?

(b)

Write the common name of the compound containing the functional group.

(c)

These compounds are examples of___________ isomerism.

(d)

Write the IUPAC name of any one of these compounds.

Q. Give the IUPAC name of the following compounds:

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

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(a) i. CH3−COOH (COOH group - carboxylic acid)i. (ii) CH3−CH2−CH2−OH (OH group - Alcohol)ii. (iii) CH3CH2−CH2.NH2 (NH2 group - Amine)iii. (iv) CH3−CHO (CHO group - Aldehyde)(b) Propan -1 - ol(c) CH3−CH2−O−CH3 : Methoxyethane