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Atoms and Molecules

2 moles of ...

Question

2 moles of $C O_{2}$ gas contains the same number of atoms as____moles of CO.

A

0.5

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B

1

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C

2

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D

3

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Solution

The correct option is B 3
No. of atoms in 1 mole of $C O_{2}$ = 3 $N_{A}$
No. of atoms in 2 moles of $C O_{2}$ = 6 $N_{A}$
No. of atoms in 1mole of CO = 2 $N_{A}$
Therefore No. of moles of CO which contain 6 $N_{A}$ number of atoms = 3

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