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Which of the following statement is incorrect?(a) One gram of C – 12 contains Avogadro’s number of atoms. (b) One mole of oxygen gas contains Avogadro’s number of molecules. (c) One mole of hydrogen gas contains Avogadro’s number of atoms. (d) One mole of electrons stands for 6.023 × 1023 electrons. |
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Answer» (a) One gram of C – 12 contains Avogadro’s number of atoms. 12 g of Carbon contains 6.023 × 1023 atoms, 1 g of Carbon contain \(\frac{6.023\times10^{23}}{12}\) = 5.018 x 1022 atoms and its is not Avogadro’s number of atoms. So (a) is the incorrect statement. |
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