The given figure is a demonstration of an experiment to show that carb

1.	The given figure is a demonstration of an experiment to show that carbon dioxide is essential for photosynthesis. What is the substance 'X', kept in watch-glass?(A) Potassium hydroxide (B) Sodium bicarbonate (C) Sodium carbonate (D) Potassium sulphate
Answer» Correct option (A) Potassium hydroxide Explanation: ln the given experiment, plant is destarched first and then kept in the bell jar along with potassium hydroxide in a watch-glass. When this setup is kept in sunlight for few hours and is then tested for starch, it will show negative result. This shows that plant fails to get CO₂ to perform photosynthesis because CO₂ gets absorbed by potassium hydroxide.

The given figure is a demonstration of an experiment to show that carbon dioxide is essential for photosynthesis. What is the substance 'X', kept in watch-glass?(A) Potassium hydroxide (B) Sodium bicarbonate (C) Sodium carbonate (D) Potassium sulphate

Answer»

Correct option (A) Potassium hydroxide

Explanation:

ln the given experiment, plant is destarched first and then kept in the bell jar along with potassium hydroxide in a watch-glass. When this setup is kept in sunlight for few hours and is then tested for starch, it will show negative result. This shows that plant fails to get CO₂ to perform photosynthesis because CO₂ gets absorbed by potassium hydroxide.

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The given figure is a demonstration of an experiment to show that carbon dioxide is essential for photosynthesis. What is the substance 'X', kept in watch-glass?(A) Potassium hydroxide (B) Sodium bicarbonate (C) Sodium carbonate (D) Potassium sulphate

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