Question
Question: The dissolution of Al(OH)<sub>3</sub> by a solution of NaOH results in the formation of :...
The dissolution of Al(OH)3 by a solution of NaOH results in the formation of :
A
[Al (H2O)4(OH)2]+
B
[Al (H2O)3(OH)3]
C
[Al (H2O)2(OH)4]–
D
[Al (H2O)6(OH)3]
Answer
Al(H<sub>2</sub>O)<sub>2</sub>(OH)<sub>4</sub>–
Explanation
Solution
Al(OH)3 dissolve in NaOH solution to give Al(OH)4– ion which is supposed to have the octahedral complex species [Al(OH)4(H2O)2]– in aqueous solution
Al(OH)3 + NaOH(aq) ® [Al (OH)4(H2O)2]–(aq) + Na+(aq)