Sodium fusion extract, obtained from aniline, on treatment with iron (II) sulphate and H 2 SO 4, in presence of air gives a Prussian blue precipitate. The blue colour is due to the formation of

Question

Sodium fusion extract, obtained from aniline, on treatment with iron (II) sulphate and H 2 SO 4, in presence of air gives a Prussian blue precipitate. The blue colour is due to the formation of (A) Fe 4[ Fe ( CN )6]3 (B) Fe 3[ Fe ( CN )6]2 (C) Fe 4[ Fe ( CN )6]2 (D) Fe [ Fe ( CN )6]3

Tardigrade Admin · Accepted Answer

[ Fe ( CN )6]4- is formed which forms Prussian blue with Fe 3+ Fe 3++[ Fe ( CN )6]4- arrow underset textPrussian blueFe 4[ Fe ( CN )6]3

Q. Sodium fusion extract, obtained from aniline, on treatment with iron (II) sulphate and $H_{2} S O_{4}$ , in presence of air gives a Prussian blue precipitate. The blue colour is due to the formation of

$F e_{4} [F e (CN)_{6}]_{3}$

$F e_{3} [F e (CN)_{6}]_{2}$

$F e_{4} [F e (CN)_{6}]_{2}$

$F e [F e (CN)_{6}]_{3}$

$[F e (CN)_{6}]^{4 -}$ is formed which forms Prussian blue with $F e^{3 +}$
$F e^{3 +} + [F e (CN)_{6}]^{4 -} \to Prussian blue F e_{4} [F e (CN)_{6}]_{3}$

Q. Sodium fusion extract, obtained from aniline, on treatment with iron (II) sulphate and H2​SO4​, in presence of air gives a Prussian blue precipitate. The blue colour is due to the formation of

Fe4​[Fe(CN)6​]3​

Fe3​[Fe(CN)6​]2​

Fe4​[Fe(CN)6​]2​

Fe[Fe(CN)6​]3​