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Chemistry · EQUILIBRIUM

हिन्दी

Radioactive sugar is added to a saturated aqueous solution of non-radioactive sugar that is in contact with undissolved solid sugar crystals at constant temperature. After some time, radioactivity is detected in both the solution and the solid sugar. What does this observation directly prove?

  1. A
    The solubility of sugar increases due to radioactive emissions.
  2. B
    Equilibrium between dissolution and crystallisation is dynamic in nature.
  3. C
    Dissolution of sugar is an irreversible physical process.
  4. D
    Radioactive sugar molecules have a significantly higher rate of dissolution than non-radioactive ones.
View Answer & Solution

Correct answer · Option B

Equilibrium between dissolution and crystallisation is dynamic in nature.

Explanation

The presence of radioactivity in both phases confirms that molecules continually transfer between solid and solution phases at equal rates, demonstrating dynamic equilibrium.

Related questions

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