The complex compound formed when aluminum dissolves in aqueous sodium hydroxide is

Assessment: WAEC SSCE - Chemistry - 2012 (Objective) Subject: Chemistry

Question 1 Report

The complex compound formed when aluminum dissolves in aqueous sodium hydroxide is

Answer Details
The complex compound formed when aluminum dissolves in aqueous sodium hydroxide is NaAl(OH)4. This is because when aluminum reacts with sodium hydroxide, it forms a complex ion [Al(OH)4]-. This complex ion has a negative charge and combines with a positive ion like Na+ to form the final compound NaAl(OH)4. The other options are not correct because they do not represent the correct combination of aluminum and sodium hydroxide.
Read lesson note on Acids, Bases And Salts (JAMB)
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