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प्रश्न
What do you observe when hydrogen gas is passed through a soap solution?
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उत्तर
On passing hydrogen gas through soap solution, soap bubbles filled with hydrogen fly high and burst. This behavior proves that hydrogen is lighter than air.
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संबंधित प्रश्न
From the knowledge of activity series, name a metal which shows the following properties
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Steam and red hot iron
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Arrange these metals in descending order of reactivity.
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Hydrogen is collected by the downward displacement of water and not of air, even though it is lighter than air.
Select the odd one out and justify your answer.
Fe, Zn, Cu and Mg
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Name the following.
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