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Question
Define the functional group and complete the following table.
| S.I. No. | Functional Group | Compound | Formula |
| (1) | ______________ | _______________ |
C2H5OH |
| (2) | _______________ | _______________ | CH3CHO |
Solution
Functional group:
- The atom or group of atoms present in the molecule which determines the characteristic property of organic compounds is called the functional group.
- All organic compounds are considered as derivatives of hydrocarbons, it is formed by replacing one or more hydrogen atom in a molecule by some other atom.
- In methane CH4, if one hydrogen is replaced by an – OH group, then compound methyl alcohol. CH3.OH is formed. The – OH group is the alcoholic functional group
- After replacement, a new compound has functions i.e. properties different from the parent hydrocarbon.
| SR. No. | Functional Group | Compound | Formula |
| (1) | OH | Ethyl Alcohol | C2H5OH |
| (2) | CHO | Acetaldehyde |
CH3CHO |
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