127. Indicate among the listed Fe(OH)2, Fe(OH)3. Ni(OH)3, Ni(OH)2 is the strongest base in terms of electrolytic dissociation:
1) Fe(OH)2, 2) Fe(OH)3, 3) Ni(OH)3, 4) Ni(OH)2.
If you do not open the file - install the RAR archiver. Inside the archive you will find a solution in Word format.