The diagram given below represents an experimental setup for demo… - Vidyadip

Question

The diagram given below represents an experimental setup for demonstrating certain aspects of the air breathed in/out. The two valves C and D help to regulate the direction of the flow of air.

Answer the following questions:
(i) There are mistakes at two places in the diagram. Redraw the diagram correctly to eliminate these mistakes.
(ii) What is the aim of the experiment?
(iii) Name the liquid contained in the test tube A and the liquid in test tube B.
(iv) what would be the observations after performing the experiment?

✓

Answer

(i) refer fig 16.6 of page number 156 on you text book.
(ii) CO2 is given out in respiration.
(iii) Lime water
(iv) Expired air contain more CO2 than inspired.

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