The dissolution of Al(OH)3 by a solution of NaOH results in the formation of:
[Al(H2O)2(OH)4]−
[Al(H2O)6(OH)3]−
[Al(H2O)4(OH)2]+
[Al(H2O)3(OH)3]+
A
[Al(H2O)3(OH)3]+
B
[Al(H2O)2(OH)4]−
C
[Al(H2O)4(OH)2]+
D
[Al(H2O)6(OH)3]−
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Solution
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1. [Al(H2O)4(OH)2]+
2. Al(OH)3 dissolves 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.