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Atoms and Molecules — Science STD 9 — Question

Gujarat BoardEnglish MediumSTD 9ScienceAtoms and Molecules1 Mark
MCQ
Which of the following statement is true about mole:
  • A
    It is used to calculate number of particles.
  • B
    $1$ mole is equal to $6.023 \times 10^{23}$ particles.
  • C
    It is the chemist's counting unit
  • ✓
    All of the above
✓

Answer

Correct option: D.
All of the above

Mole is used to find number of particles.
$1$ mole is equal to Avogadro number of atoms/ molecules.
It is chemist's counting unit.

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