5.     The functional group of an organic acid is

1.    –CHO
2.    –CH₂OH
3.    –CO₂H
4.    >CHO
5.    –CH₂NH₂

6.     The functional group of a primary amine is:

1.    -CHO
2.    -CH₂OH
3.    -CO₂H
4.    >CHO
5.    –CH₂NH₂

7.      The functional group associated with a ketone is:

1.    -CH₂OH
2.    -CHO
3.    >C=O
4.    -COOH
5.    -CH₂NH₂

8.     The functional group associated with an aldehyde is:

1.    -CH₂OH
2.    -CHO
3.    >C=O
4.    -CO₂H
5.    -CH₂NH₂

9.     The functional group associated with a carboxylic acid is:

1.    -OH
2.    -CHO
3.    >CO
4.    -CO₂H
5.    -NH₂

10.     The group marked in red in the molecule shown is an example of:

CHO.CHOH.CHOH.CHOH.CHOH.CH₂OH

1.    a primary alcohol
2.    a secondary alcohol
3.    an aldehyde
4.    a ketone
5.    a carboxylic acid

11.     The group marked in blue in the above molecule is an example of:

1.    a primary alcohol
2.    a secondary alcohol
3.    an aldehyde
4.    a ketone
5.    a carboxylic acid

12.     The group marked in red in the molecule shown is an example of:

CHO.CHOH.CHOH.CHOH.CHOH.CH₂NH₂
1.    a primary amine
2.    a secondary alcohol
3.    an aldehyde
4.    a ketone
5.    a carboxylic acid

13.     The group marked in red in the molecule is an example of:

CH₂OH.CHNH₂.CHOH.CHSH.CHOH.CH₂NH₂
1.    a primary amine
2.    a secondary amine
3.    an amide
4.    an alcohol
5.    a thiol

14.     The group marked in blue in the molecule is an example of:

CH₂OH.CHNH₂.CHOH.CO.CHOH.CONH₂
1.    a primary alcohol
2.    a secondary alcohol
3.    an amide
4.    an amine
5.    a ketone
 
 
 

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