Detection of iron ions Fe+3 and Fet+2​

Explanation: Fe2+ has a pale green colour and turns violet when added to water. Fe3+ forms a blood red solution with thiocyanate ions. Fe2+ has paramagnetic properties. Fe3+ has diamagnetic properties due to one lone electron.

The diffrence between Fe2+ and Fe3+ is the Fe2+has a pale green color and turns violet when water is added to it. While Fe3+ forms blood red when it reacts with thiocyanate ions.

Fe2+ has paramagnetic properties whereas

Fe3+ has diamagnetic properties.

Explanation:

I may not be correct.

the dissociation of nickel hydroxide is follows:

the concentration of hydroxide ion is

the equilibrium constant value of nickel hydroxide is = 6.1 * 10^-^1^6 and thus equilibrium equation can be written as:

thus, concentration of ni is 0.23 * 10^-^4 mol /l