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Which of the following is not a classification of amines?
  • a)
    Primary
  • b)
    Secondary
  • c)
    Tertiary
  • d)
    Quaternary
Correct answer is option 'D'. Can you explain this answer?
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Which of the following is not a classification of amines?a)Primaryb)Se...
Amines may be classified as primary, secondary or tertiary depending on whether 1, 2 or 3 hydrogen atoms of NH3 are replaced by alkyl/aryl groups respectively. Quaternary ammonium compounds are a different class of compounds where all four hydrogen atoms of ammonium salts are replaced by alkyl/aryl groups.
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Which of the following is not a classification of amines?a)Primaryb)Se...
Classification of Amines
Amines are classified based on the number of alkyl or aryl groups attached to the nitrogen atom. There are three main classifications of amines: primary, secondary, and tertiary.

Primary Amines
- Primary amines have one alkyl or aryl group attached to the nitrogen atom.
- The general formula for primary amines is RNH2, where R is an alkyl or aryl group.

Secondary Amines
- Secondary amines have two alkyl or aryl groups attached to the nitrogen atom.
- The general formula for secondary amines is R2NH, where R is an alkyl or aryl group.

Tertiary Amines
- Tertiary amines have three alkyl or aryl groups attached to the nitrogen atom.
- The general formula for tertiary amines is R3N, where R is an alkyl or aryl group.

Quaternary Amines
- Quaternary amines are not a classification of amines in terms of the number of alkyl or aryl groups attached to the nitrogen atom.
- Quaternary amines have a nitrogen atom that is bonded to four alkyl or aryl groups, making them positively charged.
Therefore, quaternary amines do not fit into the primary, secondary, or tertiary classifications of amines.
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