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A balloon filled with helium rises in air because

This question belongs to General Knowledge Chemistry
Chemistry
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A balloon filled with helium rises in air because

Answer & Solution
Correct Answer: Option C
In the beginning the balloon filled with helium rieses in air because weight of the air displaced by balloon is more than the weight of the balloon and helium gas filled inside balloon. We know that the density of air and the value of acceleration due to gravity decreases with height.
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