Question

Hello Guys,
Here's a Chemistry question:-
✒What happens when excess ammonia is added to zinc hydroxide?
✒Give equation and colour of the solution formed.
(No Spams and Colour of the solution is must)
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Answer 1

Answer:

This is an account on how to detect zinc ions in solution by simple precipitation reactions. Zinc is quite easy to distinguish since many of its compounds are insoluble, however many are white in color, end so it is not so easy to distinguish between other amphoteric metal cations such as Barium, Aluminium, Lead, etc. With The following set of tests it will be easy to confirm zinc without requiring complex procedures or sophisticated equipment.

Explanation DONE

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Answer 2

.Answer:

what happens when exess ammonia is added to zinc hydroxide-If excess sodium hydroxide is added, the precipitate of zinc hydroxide will dissolve, forming a colorless solution of zincate ion: ... Unlike the hydroxides of aluminum and lead, zinc hydroxide also dissolves in excess aqueous ammonia to form a colorless, water-soluble ammine complex.

Give equation and colour of the solution formed-In this reaction, zinc displaces copper from copper sulphate compound so that copper is set free. The blue colour of copper sulphate solution fades due to the formation of zinc sulphate which is colourless. A red-brown deposit of copper metal is formed on the zinc strip.

Explanation: