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प्रश्न
What are the observations and conclusions when tap water is boiled and evaporated in watch glass?
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उत्तर
When tap water is boiled and evaporated:
Observations:
- A number of concentric rings of solid matter are seen on the watch glass after evaporation of tap water.
Conclusion:
- Tap water contains dissolved salts, minerals and impurities.
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संबंधित प्रश्न
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