An aqueous solution of CoCl_2 on addition of | vedclass

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

Question

(C) The aqueous solution of $CoCl_2$ contains the octahedral complex $[Co(H_2O)_6]^{2+}$,which is pink in color.Upon adding excess concentrated $HCl$,

Vedclass · Accepted Answer

$[CoCl_4]^{2-}$

Vedclass · Answer

(C) The aqueous solution of $CoCl_2$ contains the octahedral complex $[Co(H_2O)_6]^{2+}$,which is pink in color.Upon adding excess concentrated $HCl$,the chloride ions $(Cl^-)$ act as ligands and displace the water molecules.This leads to the formation of the tetrahedral complex $[CoCl_4]^{2-}$,which is blue in color.The reaction is: $[Co(H_2O)_6]^{2+} + 4Cl^- \rightarrow [CoCl_4]^{2-} + 6H_2O$.

An aqueous solution of $CoCl_2$ on addition of excess of concentrated $HCl$ turns blue due to the formation of:

Similar Questions

Which of the following ions forms the most stable complex compound?

Which of the following has the maximum molar conductivity?

Which of the following complexes has the highest stability at $298 \ K$?

Which of the following is the correct order in the spectrochemical series of ligands?

Assign $A, B, C, D$ from the given type of reaction:
$3KCN + Fe(CN)_3 \downarrow \longrightarrow K_3[Fe(CN)_6]$

Vedclass Test Series

Exam Paper Generator

Online Exam Module