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The ratio of coefficients of \( \mathrm{HNO}_{3}, \mathrm{Fe}\left(\mathrm{NO}_{3}\right)_{2} \) and
\( \mathrm{P} \) \( \mathrm{NH}_{4} \mathrm{NO}_{3} \) in the following redox reaction,

W
\[
\mathrm{Fe}+\mathrm{HNO}_{3} \rightarrow \mathrm{Fe}\left(\mathrm{NO}_{3}\right)_{2}+\mathrm{NH}_{4} \mathrm{NO}_{3}+\mathrm{H}_{2} \mathrm{O}
\]
respectively
(a) \( 10: 1: 4 \)
(b) \( 10: 4: 1 \)
(c) \( 4: 10: 1 \)
(d) \( 4: 1: 10 \)
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