Question:

IUPAC name of following compound is
Chemical compound

Updated On: Nov 4, 2025
  • 2-Aminopentanitrile

  • 3-Aminobutanenitrile

  • 2-Aminobutanitrile

  • 3-Aminopropanenitrile

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The Correct Option is B

Approach Solution - 1

The compound shown in the image is:

To find the IUPAC name, follow these steps:

  1. Identify the Longest Carbon Chain:
    • The longest carbon chain contains four carbon atoms. This becomes the parent chain, and it is named "butane".
  2. Identify the Functional Groups and Their Positions:
    • The nitrile group (\(\text{-CN}\)) is present at the end of the chain, making it a butanenitrile.
    • An amino group (\(\text{-NH}_2\)) is attached to the third carbon of the chain.
  3. Name the Compound Using IUPAC Rules:
    • The compound is named as an amine with the position indicated: "3-Amino".
    • Combining the information, the compound is named 3-Aminobutanenitrile.
  4. Justify the Answer:
    • The presence of both the amino group at position 3 and the nitrile group makes the name "3-Aminobutanenitrile" correct.
    • Other options have incorrect positioning or numbering of functional groups.

Thus, the correct IUPAC name is 3-Aminobutanenitrile.

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Approach Solution -2

To determine the IUPAC name of the given compound, follow these steps:

Identifying the Main Chain: The longest carbon chain contains four carbon atoms, which is identified as butane.

Locating the Functional Groups: The compound contains a nitrile group (-CN) and an amino group (-NH).

The amino group is located at the third carbon in the chain.

Numbering the Carbon Chain: Number the carbon chain from the end nearest to the functional group:

1 — 2 — 3 — 4

This gives the nitrile group a position of 4 (from the end where it is attached).

Combining the Name: The full name, combining the position of the amino group and the nitrile group, is:

3-Aminobutanenitrile.

Thus, the IUPAC name of the compound is: 3-Aminobutanenitrile.

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Concepts Used:

Solutions

A solution is a homogeneous mixture of two or more components in which the particle size is smaller than 1 nm.

For example, salt and sugar is a good illustration of a solution. A solution can be categorized into several components.

Types of Solutions:

The solutions can be classified into three types:

  • Solid Solutions - In these solutions, the solvent is in a Solid-state.
  • Liquid Solutions- In these solutions, the solvent is in a Liquid state.
  • Gaseous Solutions - In these solutions, the solvent is in a Gaseous state.

On the basis of the amount of solute dissolved in a solvent, solutions are divided into the following types:

  1. Unsaturated Solution- A solution in which more solute can be dissolved without raising the temperature of the solution is known as an unsaturated solution.
  2. Saturated Solution- A solution in which no solute can be dissolved after reaching a certain amount of temperature is known as an unsaturated saturated solution.
  3. Supersaturated Solution- A solution that contains more solute than the maximum amount at a certain temperature is known as a supersaturated solution.