1. Tardigrade
  2. Question
  3. Chemistry
  4. 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 Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. 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

Some Basic Concepts of Chemistry

Solution:

$\left[ Fe ( CN )_6\right]^{4-}$ is formed which forms Prussian blue with $Fe ^{3+}$
$Fe ^{3+}+\left[ Fe ( CN )_6\right]^{4-} \rightarrow \underset{\text{Prussian blue}}{Fe _4\left[ Fe ( CN )_6\right]_3}$