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प्रश्न
How does ammonia react with a solution of Cu2+?
उत्तर
NH3 acts as a Lewis base. It donates its electron pair and forms a linkage with metal ion.
`Cu_(" "(aq))^(2) + 4NH_(3(aq)) harr [Cu(NH_3)_4]_(" "(aq))^(2+)`
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