What do you observe when blue coloured copper hydroxide reacts with the excess of ammonium hydroxide-A green colour solution of nbsp-tetrammine nbsp-copper hydroxide is obtained-A colourless solution is obtained-A deep blue solution of tetraamine copper hydroxide is formed-Reaction will not take place-

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Metal Oxide and Hydroxide

What do you o...

Question

What do you observe when blue coloured copper hydroxide reacts with the excess of ammonium hydroxide?

A green colour solution of tetrammine copper hydroxide is obtained.

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A deep blue solution of tetraamine copper hydroxide is formed.

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A colourless solution is obtained.

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Reaction will not take place.

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Solution

The correct option is C.

A deep blue solution of tetraamine copper hydroxide is formed.

When copper hydroxide reacts with the excess of ammonium hydroxide, a deep blue solution of tetrammine copper hydroxide is obtained.

$C u (O H)_{2} (p p t) + N H_{4} (O H)_{2} (e x c e s s) \to 4 H_{2} O + [C u (N H_{3})_{4}] (O H)_{2} (d e e p b l u e s o l u t i o n)$

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What do you observe when blue coloured copper hydroxide reacts with the excess of ammonium hydroxide?

The correct option is C. A deep blue solution of tetraamine copper hydroxide is formed.When copper hydroxide reacts with the excess of ammonium hydroxide, a deep blue solution of tetrammine copper hydroxide is obtained. Cu(OH)2 (ppt)+NH4(OH)2 (excess)→4H2O+[Cu(NH3)4](OH)2(deep blue solution)