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Standard XII
Chemistry
Nomenclature of Alcohols
Identify the ...
Question

Identify the functional group and the corresponding class of compounds for the following cases:

1. CH3−CH2−CH2−OH
2. CH3−CH2−CH2−COOH
3. CH3−CH2−CHO
4. CH3−CO−CH2−CH3
5. CH3−CH2−COOH
[5 Marks]


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Solution

Sl. no. Compound Functional group Class of compound
1. CH3−CH2−CH2−OH -OH

[0.5 Marks]		 Alcohol

​​​​​​​[0.5 Marks]
2. CH3−CH2−CH2−COOH -COOH

[0.5 Marks]		 Carboxylic acid

​​​​​​​[0.5 Marks]
3. CH3−CH2−CHO -CHO

​​​​​​​[0.5 Marks]		 Aldehyde

​​​​​​​[0.5 Marks]
4. CH3−CO−CH2−CH3 >C=O

​​​​​​​[0.5 Marks]		 Ketone

​​​​​​​[0.5 Marks]
5. CH3−CH2−COOH -COOH

​​​​​​​[0.5 Marks]		 Carboxylic acid

​​​​​​​​​​​​​​[0.5 Marks]

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Q. Examine the given structural formula and select the esters. You may also identify the chemical required for their preparation.
1. CH3−CH2−COO−CH3
2. CH3−CH2−COOH
3. CH3−CH2−CO−CH3
4. CH3−OH
5. CH3−CH2−CH2OH
6. CH3−COOH
7. CH3−COO−CH2−CH2−CH3
Q. Identify the type of the following reaction of carbon compounds.
a. CH3 -CH2 -CH2-OH → CH3 -CH2 -COOH
b. CH3 -CH2 -CH3 → 3CO2 + 4H2O
c. CH3 -CH = CH -CH3 + Br2 → CH3 -CHBr - CHBr -CH3
d. CH3 -CH3 + Cl2 → CH3 -CH2 -Cl + HCl
e. CH3 -CH2 -CH2 -CH2 -OH → CH3 -CH2 -CH=CH2 + H2O
f. CH3 -CH2 -COOH + NaOH → CH3 -CH2 -COO - Na+ + H2O
g. CH3 -COOH + CH3 -OH → CH3 -COO- CH3 + H2O
Q.

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

1. CH3−CH2−CH2−OH
2. CH3−CH2−CH2−COOH
3. CH3−CH2−CHO
4. CH3−CO−CH2−CH3
5. CH3−CH2−CO-OH


Q. Name the functional groups present in the following compounds.
(i) CH2−CO−CH2−CH2−CH2−CH3
(ii) CH3−CH2−CH2−COOH
(iii) CH3−CH2−CH2−CH2−CHO
(iv) CH3−CH2−OH
Q. Give the I.U.P.A.C names of the following:
CH3 - CH3
CH3 - CH2 - CH3
CH3 - CH2 - CH2 - CH3
CH3 - CH2 - CH2 - CH2 - CH3
CH2 = CH2
CH3 - CH = CH2
CH3 = CH2 - CH = CH2
CH3 - CH2 - CH2 - CH = CH2
CH =_ CH
CH3 - C =_ CH
CH3 - CH2 - C =_ CH
CH3 - CH2 - CH2 - C =_ CH
CH3 - OH
CH3 - CH2 - OH
CH3 - CH2 - CH2 - OH
CH3 - CH2 - CH2 - CH2 - OH
CH3 - CH2 - CH2 - CH2 - CH2 - OH
H - CHO
CH3 - CHO
CH3 - CH2 - CHO
CH3 - CH2 - CH2 - CHO
CH3 - CH2 - CH2 - CH2 - CHO
H - COOH
CH3 - COOH
CH3 - CH2 - COOH
CH3 - CH2 - CH2 - COOH
CH3 - CH2 - CH2 - CH2 - COOOH
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Nomenclature of Alcohols
Standard XII Chemistry
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