When Ethane-1,2-diamine is added progressivel | vedclass

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

Question

(C) The reaction proceeds in steps as the ligand Ethane-$1,2$-diamine $(en)$ replaces water molecules in the coordination sphere of the Nickel $(II)$

Vedclass · Accepted Answer

Green $\rightarrow$ Pale Blue $\rightarrow$ Blue $\rightarrow$ Violet

Vedclass · Answer

(C) The reaction proceeds in steps as the ligand Ethane-$1,2$-diamine $(en)$ replaces water molecules in the coordination sphere of the Nickel $(II)$ ion: $1$. $[Ni(H_2O)_6]^{+2} + en \rightarrow [Ni(H_2O)_4(en)]^{+2} + 2H_2O$ (Green) $2$. $[Ni(H_2O)_4(en)]^{+2} + en \rightarrow [Ni(H_2O)_2(en)_2]^{+2} + 2H_2O$ (Pale Blue) $3$. $[Ni(H_2O)_2(en)_2]^{+2} + en \rightarrow [Ni(en)_3]^{+2} + 2H_2O$ (Violet/Blue) Thus,the sequence of colour change is Green $\rightarrow$ Pale Blue $\rightarrow$ Blue/Violet.

When Ethane-$1,2$-diamine is added progressively to an aqueous solution of Nickel $(II)$ chloride,the sequence of colour change observed will be :

Similar Questions

$CN^{-}$ is a strong field ligand. This is due to the fact that

What is the color of the aqueous solution of $[Co(NH_3)_6]^{3+}$?

Copper sulphate dissolves in excess of $KCN$ to give

Assertion : $NF_3$ is a weaker ligand than $N(CH_3)_3$.
Reason : $NF_3$ ionizes to give $F^{-}$ ions in aqueous solution.

On adding excess of ammonium hydroxide to a copper chloride solution:

Vedclass Test Series

Exam Paper Generator

Online Exam Module