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Question
An experiment was set up as shown in the figure alongside. Look at the figure and answer the following questions:
( i) What is the objective of this experiment?
( ii ) Which plant is used in this experiment?
( iii ) Which gas is evolved in this process?
( iv ) What will happen to the rate of evolution of this gas if a pinch of sodium
bicarbonate is added?
(v ) What will happen if the apparatus is kept in dark?
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Solution
(i) The objective of this experiment is to prove that oxygen is released during photosynthesis.
(ii) Hydrilla
(iii) Oxygen
(iv) The rate of photosynthesis will increase and the rate of bubbling also increases when sodium bicarbonate is added.
(v) Photosynthesis will not take place.
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