Avogadro’s number — task. Assessments, Science TN.

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Which of the following statement is incorrect?

\(12\) \(gram\) of \(C – 12\) contains Avogadro’s number of atoms.
One mole of oxygen gas contains Avogadro’s number of molecules.
One mole of hydrogen gas contains Avogadro’s number of atoms.
One mole of electrons stands for \(6.023\times10^{23}\) electrons.

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