Avogadro number — task. Science TNSB Mentoring, Class 10.

1. Which of the following statement is incorrect?

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

2. \(1\) mole of any substance contains __________ molecules.

\(3.0115\times10^{23}\)
\(6.023\times10^{-23}\)
\(6.023\times10^{23}\)
\(12.046\times10^{23}\)

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