If \( \mathrm{N}_{\mathrm{A}} \) is Avogadros number then number of \( \mathrm{P} \) electrons i...

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If \( \mathrm{N}_{\mathrm{A}} \) is Avogadros number then number of
\( \mathrm{P} \)
electrons in \( 4.2 \mathrm{~g} \) of \( \mathrm{N}^{3-} \) :-
W
(A) \( 2.1 \mathrm{~N}_{\mathrm{A}} \)
(B) \( 3 \mathrm{~N}_{\mathrm{A}} \)
(C) \( 6 \mathrm{~N}_{\mathrm{A}} \)
(D) \( \mathrm{N}_{\mathrm{A}} \)
\( 19 / 24 \)
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