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Physical and Chemical Changes — Science STD 7 — Question

Gujarat BoardEnglish MediumSTD 7SciencePhysical and Chemical Changes1 Mark
MCQ
Which is the formula of ozone?
  • A
    $Fe_2O_3$
  • B
    $Fe_3O_2$
  • C
    $O_2$
  • ✓
    $O_3$
✓

Answer

Correct option: D.
$O_3$
D.  $O_3$
Explanation:
Medical $O_3,$ used to disinfect and treat disease, has been around for over $150$ years. Used to treat infections, wounds and multiple diseases, $O_3$'s effectiveness has been well-documented.

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