Question

Question 24
Observe the set up given in Fig. 2.2 and answer the following questions.


(a) What happens to the sugar solution in A?
(b) Which gas is released in A?
(c) What changes will you observe in B when the released gas passes through it?

Answer 1

(a) Yeast is introduced into the sugar solution and yeast ferments the sugar. Yeast causes fermentation converting sugar into alcohol and carbon dioxide.
(b) The gas released from A through the pipeline is carbon dioxide.
(c) The carbon dioxide moving towards lime water in the test tube B can turn lime water milky.