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प्रश्न
How to show the presence of carbon-di-oxide in the air?
टिप्पणी लिखिए
उत्तर
Pour some lime water into a glass tumbler Bubble some air using a straw through the liter water. After a few minutes, lime water will produce a white precipitate, and the lime water will turn into a milky white solution. This shows the presence of Carbon- dioxide in the air.
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