Functional Groups

Rucete ✏ Chemistry In a Nutshell

1. Alcohols (–OH group)

  • General formula: ROH
  • Functional group: Hydroxyl (-OH)
  • Examples:
    • Methanol: CH₃OH
    • Ethanol: C₂H₅OH

2. Carboxylic Acids (–COOH group)

  • General formula: RCOOH
  • Functional group: Carboxyl
  • Examples:
    • Formic acid: HCOOH
    • Acetic acid: CH₃COOH

3. Amides

  • Structure: R–C(=O)–NR'R''
  • Derived from carboxylic acids and amines
  • Functional group contains carbonyl (C=O) bonded to nitrogen

4. Amines

  • General formula: R–NH₂
  • Act as organic bases
  • Examples:
    • Methylamine: CH₃NH₂
    • Ethylamine: C₂H₅NH₂

5. Aldehydes

  • General formula: RCHO
  • Functional group: Carbonyl (C=O) at end of chain
  • Examples:
    • Formaldehyde: HCHO
    • Acetaldehyde: CH₃CHO

6. Ketones

  • General formula: RCOR'
  • Functional group: Carbonyl (C=O) in the middle of the chain
  • Examples:
    • Acetone: CH₃COCH₃
    • Methyl ethyl ketone: CH₃COC₂H₅

7. Esters

  • General formula: RCOOR'
  • Formed from carboxylic acids + alcohols
  • Examples:
    • Methyl formate: HCOOCH₃
    • Ethyl acetate: CH₃COOC₂H₅

8. Ethers

  • General formula: ROR'
  • Formed from two alkyl groups joined by an oxygen atom
  • Examples:
    • Dimethyl ether: CH₃OCH₃
    • Diethyl ether: C₂H₅OC₂H₅

Post a Comment

Previous Post Next Post