An ether solution containing aniline (A), benzoic acid (B), phenol (C), and toluene (D), is extracted with aqueous NaHCO3. After the extraction, the ether will contain . g

the answer is c.the valence of the atoms combine .

c) should be the answer.

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