Advertisements
Advertisements
प्रश्न
Explain why:
If distilled water is kept in a sealed bottle for a long time, it leaves etchings on the surface of the glass.
Advertisements
उत्तर
If distilled water is kept in a sealed bottle for a long time, it etches the surface of glass because substances which are apparently insoluble in water actually dissolve in minute traces in water.
APPEARS IN
संबंधित प्रश्न
Name the four main sources of water.
State the importance of water cycle in nature.
Give reason for Silica gel pouches are kept in unused water bottle.
Give balanced chemical equation for the reaction of water with Sodium .
Explain how the peculiar variation of density of water with temperature can cause water— pipes to burst in very cold places.
What do you mean by water pollution ?
What are its causes and how can water pollution be controlled ?
What are stalgmites and stalactites? How are they formed?
The water in a lake is called ground water.
What is meant by the term ‘oil spill’?
