The structural formulas for eight constitutionally isomeric amines that have molecular formula C 4 H 11 N are to be drawn, and they are to be classified as a primary, secondary, or tertiary amines. Concept introduction: The molecular formula tells the number of atoms of each element present in the compound. Each carbon atom forms four bonds while each hydrogen atom forms one bond. The amines are classified as primary, secondary, or tertiary amines on the basis of the number of alkyl groups and hydrogen atoms bonded to nitrogen. A primary amine is one in which the nitrogen atom is attached to one alkyl group and two hydrogen atoms. In secondary amines, the nitrogen atom is attached to two alkyl groups and one hydrogen atom. The two alkyl groups may be the same or different. A tertiary amine is one in which the nitrogen atom is attached to three alkyl groups and no hydrogen atoms. The three alkyl groups may be the same or different.

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Chapter 5.1, Problem 2P

Interpretation Introduction

Interpretation:

The structural formulas for eight constitutionally isomeric amines that have molecular formula C4H11N are to be drawn, and they are to be classified as a primary, secondary, or tertiary amines.

Concept introduction:

The molecular formula tells the number of atoms of each element present in the compound.

Each carbon atom forms four bonds while each hydrogen atom forms one bond.

The amines are classified as primary, secondary, or tertiary amines on the basis of the number of alkyl groups and hydrogen atoms bonded to nitrogen.

A primary amine is one in which the nitrogen atom is attached to one alkyl group and two hydrogen atoms.

In secondary amines, the nitrogen atom is attached to two alkyl groups and one hydrogen atom. The two alkyl groups may be the same or different.

A tertiary amine is one in which the nitrogen atom is attached to three alkyl groups and no hydrogen atoms. The three alkyl groups may be the same or different.

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