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Chemistry · EQUILIBRIUM

हिन्दी

In Haber's process, the dynamic nature of chemical equilibrium was experimentally verified by:

  1. Measuring pressure drop continuously
  2. Adding radioactive carbon isotopes
  3. Using isotopic substitution with deuterium (\( \text{D}_2 \))
  4. Changing the catalyst intermittently

Correct answer · Option 3

Using isotopic substitution with deuterium (\( \text{D}_2 \))

Explanation

The formation of mixed deuterated ammonia species (\( \text{NH}_2\text{D} \), \( \text{NHD}_2 \), etc.) upon mixing equilibrium mixtures of \( \text{H}_2 \) and \( \text{D}_2 \) proves the dynamic nature of equilibrium.
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