The number of atoms in 4.25 g of `NH_(3)` is approximately :-

The number of atoms in 4.25 g of `NH_(3)` is approximately :-
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The number of atoms in 4.25 g of `NH_(3)` is approximately :- A. `1 xx 10^(23)` B. `2 xx 10^(23)` C. `4 xx 10^(23)` D. `6 xx 10^(23)`
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