Biology
Given below is the diagram of an experimental set-up (final stage). Study the same and answer the following questions :
(a) What is the main aim of the experiment?
(b) Oxygen gas shown in the experiment is released from which of the raw materials ?
(c) How would you confirm the presence of oxygen gas?
(d) Name the chemical substance which can be added in water to enhance the process/rate of release of oxygen gas.
(e) Draw a neat and labelled diagram of the same experiment for its initial stage.
Photosynthesis
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Answer
(a) The main aim of the experiment is to show that oxygen is produced during photosynthesis.
(b) Oxygen is released from Water (H2O).
(c) The gas present in the test tube makes a glowing splinter bursts into flames. This shows the presence of oxygen.
(d) Sodium Bicarbonate
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