Zinc hydroxide () is an amphoteric white precipitate. It readily dissolves in an excess of aqueous sodium hydroxide (). The coordination number of the central zinc atom in the newly formed soluble com

Question

Zinc hydroxide ($Zn(OH)_2$) is an amphoteric white precipitate. It readily dissolves in an excess of aqueous sodium hydroxide ($NaOH$). The coordination number of the central zinc atom in the newly formed soluble complex ion is:

Prashant Kotian · Accepted Answer

Correct answer: B. Zinc hydroxide reacts with excess to form the highly soluble tetrahydroxozincate(II) complex ion, . In this complex, the coordination number of zinc is exactly 4.

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