Chemistry · 2022
JEE Main · 30 July 2022, Shift 2 · Q50
In the ring test of NO_3^- ion what is the oxidation number of iron in the complex (brown ring) [ Fe ( H_2 O )_5 NO ] SO_4?
In the ring test of $\displaystyle \mathrm{NO}_3{ }^{-}$ion what is the oxidation number of iron in the complex (brown ring) $\displaystyle \left[\mathrm{Fe}\left(\mathrm{H}_2 \mathrm{O}\right)_5 \mathrm{NO}\right] \mathrm{SO}_4$ ?
Official answer
(2)
$\displaystyle +1$
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