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Atoms and Molecules — Science STD 9 — Question

Gujarat BoardEnglish MediumSTD 9ScienceAtoms and Molecules1 Mark
MCQ
What is the formula mass unit of $ZnO?$
  • A
    $18u$
  • ✓
    $81u$
  • C
    $88u$
  • D
    $188u$
✓

Answer

Correct option: B.
$81u$
$81u$

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