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Microbes in Human Welfare — BIOLOGY STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 ScienceBIOLOGYMicrobes in Human Welfare1 Mark
Question
Two statements are given-one labelled Assertion and the other labelled Reason. Select the correct answer to these questions from the codes (a), (b), (c) and (d) as given below.
  1. Both assertion and reason are true and reason is the correct explanation of assertion.
  2. Both assertion and reason are true but reason is not the correct explanation of assertion.
  3. Assertion is true but reason is false.
  4. Both assertion and reason are false.
Assertion: Champagne gives off bubbles.
Reason: Alcoholic content is 12-16% in champagne.
✓

Answer

  1. Both assertion and reason are true but reason is not the correct explanation of assertion.

Solution:

Champagne wines are bottled before fermentation is complete. These wines give off bubbles of gas. Alcohol content is 12-16%.

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