Zinc ions with aqueous ammonia produce which observation?

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Multiple Choice

Zinc ions with aqueous ammonia produce which observation?

Explanation:
When zinc ions meet aqueous ammonia, ammonia acts as a base and increases the OH− available. This causes zinc to form zinc hydroxide, Zn(OH)2, which appears as a white precipitate. If you add more ammonia, the ammonia molecules coordinate to the Zn2+ ion, forming a soluble zinc–ammonia complex. This breaks up the solid and makes the solution colourless. So you first see a white precipitate, and in excess ammonia it dissolves to give a colourless solution.

When zinc ions meet aqueous ammonia, ammonia acts as a base and increases the OH− available. This causes zinc to form zinc hydroxide, Zn(OH)2, which appears as a white precipitate. If you add more ammonia, the ammonia molecules coordinate to the Zn2+ ion, forming a soluble zinc–ammonia complex. This breaks up the solid and makes the solution colourless. So you first see a white precipitate, and in excess ammonia it dissolves to give a colourless solution.

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