MCQ
When Ethane-1,2-diamine is added progressively to an aqueous solution of Nickel (II) chloride, the sequence of colour change observed will be :
- APale Blue $\rightarrow$ Blue $\rightarrow$ Green $\rightarrow$ Violet
- BPale Blue $\rightarrow$ Blue $\rightarrow$ Violet $\rightarrow$ Green
- ✓Green $\rightarrow$ Pale Blue $\rightarrow$ Blue $\rightarrow$ Violet
- DViolet $\rightarrow$ Blue $\rightarrow$ Pale Blue $\rightarrow$ Green
