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Some Basic Concepts of Chemistry — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistrySome Basic Concepts of Chemistry1 Mark
MCQ
The modern atomic mass unit is based on the mass of :
  • ✓
    $C-12$ isotope
  • B
    Hydrogen
  • C
    Oxygen
  • D
    Nitrogen
✓

Answer

Correct option: A.
$C-12$ isotope

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