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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
$1u= ?$
  • A
    The mass of one atom of the carbon $-12$ isotope
  • B
    $\frac{1}{12}^\text{th}$ the mass of one atom of the carbon $-16$ isotope
  • ✓
    $\frac{1}{12}^\text{th}$ the mass of one atom of the carbon $-12$ isotope
  • D
    The mass of one atom of the carbon $-16$ isotope
✓

Answer

Correct option: C.
$\frac{1}{12}^\text{th}$ the mass of one atom of the carbon $-12$ isotope
$1u = \frac{1}{12}^\text{th}$ the mass of one atom of the carbon $-12$ isotope.

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