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प्रश्न
Explain the purpose of the fountain experiment with a labelled diagram.
आकृति
स्पष्ट कीजिए
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उत्तर
Purpose: To demonstrate the extreme solubility of ammonia gas in water and its basic (alkaline) nature.
Working: Squeezing the water dropper dissolves the ammonia gas inside the flask, creating a partial vacuum. The atmospheric pressure forces the red litmus solution up through the jet tube, which squirts out as a blue fountain because ammonia is alkaline.
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