Which of the following compounds after mixing | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(D) $1$. $K_4[Fe(CN)_6] + FeCl_3$ produces Prussian blue precipitate of $Fe_4[Fe(CN)_6]_3$.$2$. $NH_4OH$ added to $CuSO_4$ produces a deep blue comple

Vedclass · Accepted Answer

Excess $KCN$ and $CuSO_4$ solution

Vedclass · Answer

(D) $1$. $K_4[Fe(CN)_6] + FeCl_3$ produces Prussian blue precipitate of $Fe_4[Fe(CN)_6]_3$.$2$. $NH_4OH$ added to $CuSO_4$ produces a deep blue complex $[Cu(NH_3)_4]SO_4$.$3$. Anhydrous $CuSO_4$ is white,but it turns blue upon hydration to form $CuSO_4 \cdot 5H_2O$.$4$. Excess $KCN$ added to $CuSO_4$ forms a colorless complex $[Cu(CN)_4]^{3-}$ because $Cu^{2+}$ is reduced to $Cu^+$ by $CN^-$,and the resulting complex is colorless. Thus,it does not produce a blue color.

Which of the following compounds after mixing cannot produce blue coloration?

Similar Questions

The aqueous solution of a transition metal salt changes colour from pink to blue when concentrated hydrochloric acid is added to it. The change in colour is due to:

Copper sulphate solution reacts with $KCN$ to give

Select the most stable complex.

Aluminium trifluoride is insoluble in anhydrous $HF$ but dissolves on addition of $NaF$. Aluminium trifluoride precipitates out of the resulting solution when gaseous $BF_3$ is bubbled through. Give reasons.

Nitrate is detected by the ring test. The brown color of the ring is due to which of the following?

Vedclass Test Series

Exam Paper Generator

Online Exam Module