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The sample with largest number of atoms ...

The sample with largest number of atoms is

A

1g of `O_(2)(g)`

B

1g of Ni (s)

C

1g of B(s)

D

1g of `N_(2)(g)`

Text Solution

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The correct Answer is:
C
(A) 1g of `O_(2) rarr "moles" = (1)/(32)`, atoms `= (N_(A) xx 2)/(32)`
(B) 1g of `N_(i) rarr` Number of Atoms = moles `xx NA rArr (1)/((59)) xx N_(A)` (Atomic wt. of Ni `= 59 g mol^(-1)`)
(C ) 1g of `B rarr` Atom = moles `xx N_(A) rArr (1)/(11) xx N_(A)`
(D) 1g of `N_(2) rarr` Atoms = moles `xx 2 N_(A) = (1)/(28) xx 2 xx N_(A)`
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