State two relevant observations for each of the following:
Ammonium hydroxide solution is added to zinc nitrate solution in minimum quantities and then in excess.

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Solution

When ammonium hydroxide solution is added to zinc nitrate solution in small quantity then, a white gelatinous precipitate of zinc (II) hydroxide is formed. The reaction is as follows :
$Zn {({NO}_{3})}_{2} + 2 {NH}_{4} OH \to Zn {(OH)}_{2} ↓ + 2 {NH}_{4} {NO}_{3}$
(Zinc(II) (Ammonium (Zinc(II) (Ammonium
nitrate) hydroxide) hydroxide) nitrate)
white gelatinous ppt.
When ammonium hydroxide solution is added to zinc nitrate solution in excess then, the white gelatinous precipitate of zinc (II) hydroxide is dissolved to form a clear solution of Tetraammine zinc(II) nitrate.

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(i) adding sodium hydroxide solution to each portion in turn till it is in excess.
(ii) adding ammonium hydroxide to each portion in turn till it is in excess.

State two relevant observations for each of the following:

(i) Ammonium hydroxide solution is added to copper (II) nitrate solution in small quantities and then in excess.
(ii) Ammonium hydroxide solution is added to zinc nitrate solution in minimum quantities and then in excess.

State two relevant observations:

ii. Ammonium hydroxide solution is added to zinc(II) nitrate solution in minimum quantities and then in excess.

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(a) Ammonium hydroxide solution is added to copper(II) nitrate solution in small quantities and then in excess.

Q. State two relevant observations for each of the following:

Ammonium hydroxide solution is added to copper (II) nitrate solution in small quantities and then in excess.

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State two relevant observations for each of the following: Ammonium hydroxide solution is added to zinc nitrate solution in minimum quantities and then in excess.

State two relevant observations for each of the following:
Ammonium hydroxide solution is added to zinc nitrate solution in minimum quantities and then in excess.