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Science Test Space
Class 10
Atoms and Molecules
Difference between Atoms and molecules
9.
Bookback questions: choose the correct answer
Question:
2
m.
1
.
Which of the following represents \(1\) \(amu\)?
Mass of a \(C –12\) atom
Mass of a hydrogen atom
1/12th of the mass of a (C –12\) atom
Mass of \(O –16\) atom
2
.
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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