Identify the reason for the solubility of polar solute in polar solvent from the following.

Identify the reason for the solubility of polar solute in polar solvent from the following.
  1. solute - solute interactions, solute solvent interactions and solvent - solvent interactions are of similar magnitude.
  2. solute - solute interactions $\gt$ solute solvent interactions $\gt$ solvent - solvent . interactions .
  3. solvent- solvent interactions $\gt$ solute solvent interactions $\gt$ solute - solute interactions.
  4. solute - solvent interactions $\gt$ solute solute interactions $\gt$ solvent - solvent interactions.

Solution

The solubility of a polar solute in a polar solvent is mainly due to the favorable interactions between the solute and solvent molecules. These interactions are crucial for the dissolution process.
The most appropriate explanation for this is when the solute-solvent interactions are comparable in magnitude to the solute-solute and solvent-solvent interactions. This balance allows the solute to dissolve efficiently, as the solvent can break apart the solute molecules while maintaining similar intermolecular forces within the solvent.
Correct answer: (1) Solute-solute interactions, solute-solvent interactions, and solvent-solvent interactions are of similar magnitude. This describes a scenario where the polar solute can easily dissolve in the polar solvent due to similar intermolecular forces being at play in both the solute and the solvent.

Asked in: MHT CET 2024 (09 May Shift 1)

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