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JEE Main Chemistry Solutions 2026 JEE Main 2026 (22 January Shift 1)

JEE Main Chemistry Question (2026) — Solution

Question

Given below are two statements: Statement I : The Henry's law constant K _ H is constant with respect to variations in solution's concentration over the range for which the solution is ideally dilute. Statement II : K _ H does not differ for the same solute in different solvents. In the light of the above statements, choose the correct answer from the options given below

Options

  1. A. Statement I is false but Statement II is true
  2. B. Both Statement I and Statement II are false
  3. C. Statement I is true but Statement II is false
  4. D. Both Statement I and Statement II are true

Answer

C. Statement I is true but Statement II is false

Step-by-step solution

Statement I: K_H is constant with respect to concentration variations in ideally dilute solutions. TRUE - Henry's law constant depends only on temperature and the nature of the solute-solvent interaction. For ideally dilute solutions, K_H = P_ gas /x_ solute remains constant regardless of solute concentration within the dilute range. Statement II: K_H does not differ for the same solute in different solvents. FALSE - Henry's law constant is solvent-dependent. The same gas or solute has different K_H values in different solvents at the same temperature because the solute-solvent interactions differ. For example, CO₂ dissolves differently in water versus ethanol, giving different K_H values. Therefore, Statement I is true but Statement II is false.

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