MCQ
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.
Assertion: Acetic acid is prepared by acetic acid bacteria.
Reason: Alcoholic fermentation and the conversion of alcohol to acetic acid are aerobic processes.
  • A
    Both assertion and reason are true and reason is the correct explanation of assertion.
  • B
    Both assertion and reason are true but reason is not the correct explanation of assertion.
  • Assertion is true but reason is false.
  • D
    Both assertion and reason are false.

Answer

Correct option: C.
Assertion is true but reason is false.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

Assertion (A): Deoxyribonucleoside triphosphates serve dual purposes.
Reason (R): They act as proof readers and provide energy.
Gene therapy has been successful in curing genetic diseases in laboratory animals through
Assertion (A): The primary effluent is passed into large aeration tanks where it is constantly agitated mechanically and the air is pumped into it.
Reason (R): This allows vigorous growth of useful anaerobic microbes into flocs.
For 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.
Assertion : Subsequent encounter with the same pathogen elicits a highly intensified anamnestic response.
Reason: This is based on the fact that our body appears to have memory of the first encounter.
Assertion (A): Primer pheromones bring about physiological changes in the receivers.
Reason (R): Releaser pheromones cause immediate change in the receivers.
$Bt$ toxin is harmful to insects like:
For 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.
Assertion: No two species can occupy the same ecological niche in a habitat.
Reason: A habitat can contain only one ecological niche.
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.
Assertion: Rhizobium forms nodules on the roots of legume plants.
Reason: Rhizobium fixes atmospheric nitrogen into organic forms which is used by the plant as nutrients.
For 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.
Assertion : Synthesis of tryptophan is self regulatory.
Reason: Tryptophan works both as co$-$repressor and through feedback inhibition.
Assertion: Statins is a blood-cholesterol lowering agents.
Reason: It inhibiting the enzyme responsible for synthesis of cholesterol.