Question

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 1

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