Which of the following pairs have the same number of atoms ?

1.	Which of the following pairs have the same number of atoms ?
Answer» 16 g of `O_(2(g))` and 4 g of `H_(2(g))` 16 g of `O_(2)` and 44 g of CO 28 g of `N_(2)` and 32 g of `O_(2)` 12 g of `C_((s))` and23 g of `Na_((s))` SOLUTION :(C) No. of atoms in 28g of `N_(2) = (28)/(28) xx N_(A) xx 2= 2N_(A)`( `N_(A)=` AVOGADRO NUMBER) No. of atoms in 32 g of `O_(2) = (32)/(32) xx N_(A) xx 2 = 2N_(A)` (D) No. of atoms in 12 g of `C=(12)/(12) xx N_(A) xx 1 = N_(A)` No. of atoms in 23 g of `N_(A) = (23)/(23) xx N_(A) xx 1 = N_(A)`

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