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Chemistry · Ionic Equilibrium

JEE Main 2025 — 2 April, Evening Shift — Question 16

xx ' gg of NaCl is added to water in a beaker with a lid. The temperature of the system is raised form 1∘C1^{\circ} \mathrm{C} to 25∘C25^{\circ} \mathrm{C}. Which out of the following plots, is best suited for the change in the molarity ( M ) of the solution with respect to temperature? [Consider the solubility of NaCl remains unchanged over the temperature range]

  1. Option A:
    Option A figure
    Correct
  2. Option B:
    Option B figure
  3. Option C:
    Option C figure
  4. Option D:
    Option D figure

Answer: A

Step-by-step solution

Volume is minimum at 4∘C4^{\circ} \mathrm{C}, so molarity will be maximum at 4∘C4^{\circ} \mathrm{C}.

Solution figure

Answer key and solution verified before publishing.

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Exam
JEE Main 2025
Paper
2 April, Evening Shift
Subject
Chemistry
Chapter
Ionic Equilibrium
Topic
Sparingly Soluble Salts, Solubility Product & Precipitation Conditions
x ' g of NaCl is added to water in a beaker with a lid. The… | JEE Main 2025 PYQ with Solution · DhiX AI