The correct order for the electronegativity of the elements listed below is
Select one:
a. H>> S > N> O.
b. S>N > O> C>H.
C. N>S>C>F.
d. N>S>>H.
e. C > O > H > N>​

the answer to this question is 3.

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