Question:

Which of the following has the highest Boiling Point?

Updated On: Jun 17, 2024
  • Chloromethane
  • Fluoromethane
  • Bromomethane
  • Iodomethane
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The Correct Option is D

Solution and Explanation

The correct option is (D): Iodomethane.
The boiling point of a compound is influenced by various factors, including the strength and nature of intermolecular forces. In this case, we can compare the compounds based on the polarity and strength of the halogen bonding.
Among the given compounds, the polarity and intermolecular forces increase in the order: Fluoromethane (B) < Chloromethane (A) < Bromomethane (C) < Iodomethane (D)
As we move down the halogen group, the size and polarizability of the halogen atoms increase. Larger halogen atoms induce stronger van der Waals forces, resulting in higher boiling points.
Therefore, Iodomethane (D) is expected to have the highest boiling point among the given compounds.
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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.