2. Questions Bank
  3. 8th Class
  4. Science
  5. Microorganisms : Friend and Foe

8th Class Science Microorganisms : Friend and Foe Question Bank Microorganisms

  • question_answer
    Refer to the given experimental set up as shown in the given figure and select the correct option regarding it.

    A) In X, yeast causes fermentation which converts sugar into lactic acid and carbon dioxide.

    B) In Y, oxygen gas is released while carbon dioxide gas is absorbed.

    C) In Y, lime water turns milky.

    D) Both (b) and (c)

    Correct Answer: C

    Solution :

    In labelled part X, yeast causes fermentation which converts sugar into alcohol and carbon dioxide. Carbon dioxide released by X when enters into Y, lime water present in it turns milky.


You need to login to perform this action.
You will be redirected in 3 sec spinner