when distilled water is stored in a sealed glass vessel for a long time, it leaves itching on the surface of glass why?

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Solution

Dear student!
Distilled water have slightly acidic pH values like 6.2-6.5 and so they react with the glass and liberate alkali and in this way the glass surface gets itched.

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when distilled water is stored in a sealed glass vessel for a long time, it leaves itching on the surface of glass why?

Dear student!Distilled water have slightly acidic pH values like 6.2-6.5 and so they react with the glass and liberate alkali and in this way the glass surface gets itched.

Dear student!
Distilled water have slightly acidic pH values like 6.2-6.5 and so they react with the glass and liberate alkali and in this way the glass surface gets itched.