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Home/ Questions/Q 173442
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Vaibhav Gotam
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Vaibhav Gotam
Asked: December 3, 20212021-12-03T11:10:34+00:00 2021-12-03T11:10:34+00:00In: Class 10 Science

The second student placed a watch glass containing potassium hydroxide in one bell jar as:

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Poll Results

50%[A] Potassium hydroxide absorbs carbon dioxide gas present in the bell jar ( 2 voters )
25%[B] Potassium hydroxide absorbs moisture present in the bell jar ( 1 voter )
25%[C] Potassium hydroxide absorbs oxygen gas present in the bell jar ( 1 voter )
0%[D] Potassium hydroxide reacts with carbon dioxide gas to form a compound.
Based On 4 Votes

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As the student wants to show that carbon dioxide is essential for photosynthesis, he sealed both the bell jars with Vaseline (- petroleum product) and placed KOH in one bell jar as KOH absorbs CO₂ gas present in the bell jar. The plant (in this bell jar) will not be able to perform photosynthesis or making food as carbon dioxide has been removed from the bell jar.

class 10 science mcq solutionsclass 10th science cbsc sample paper
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    1. Vimal kumar
      2021-12-03T12:04:25+00:00Added an answer on December 3, 2021 at 12:04 pm

      [A] Potassium hydroxide absorbs carbon dioxide gas present in the bell jar

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