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Wastewater Story — Science STD 7 — Question

Gujarat BoardEnglish MediumSTD 7ScienceWastewater Story1 Mark
MCQ
Assertion (A) Ozone is used as a disinfectant.
Reason (R) It kills microorganism present in water.
  • ✓
    Both A and R are true and R is the correct explanation of A
  • B
    Both A and R are true, but R is not the correct explanation of A
  • C
    A is true, but R is false
  • D
    A is false, but R is true
✓

Answer

Correct option: A.
Both A and R are true and R is the correct explanation of A
A

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