State the effect of adding a small amount of a] sodium hydroxide b] ammonium hydroxide followed by an excess in each case to samples of each of the salt solutions:
Zinc nitrate solution and calcium nitrate solution.

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Solution

Zinc nitrate
Calcium nitrate
When Sodium hydroxide solution is added a white precipitate is formed which is soluble in excess of sodium hydroxide.
When Sodium hydroxide solution is added a white precipitate is formed which is insoluble in excess of Sodium hydroxide.

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Q. State the effect of adding a small amount of a] sodium hydroxide b] ammonium hydroxide followed by an excess in each case to samples of each of the salt solutions: zinc nitrate, calcium nitrate and lead nitrate.

Q. State the effect of adding a small amount of: (a) sodium hydroxide (b) ammonium hydroxide followed by an excess in each case to samples of each of the salt solutions.
(i) calcium nitrate [small amount .......... in excess ..........].
(ii) zinc nitrate [small amount ........... in excess ............].
(iii) lead nitrate [small amount ........... in excess .........].

Copy and complete the following which summarizes the effect of adding a small amount of sodium hydroxide to salt solution followed by an excess of the reagent, and then adding ammonium hydroxide (ammonia solution) in a small amount followed by an excess to another sample of the salt solution.

Q. Three test tubes contain calcium nitrate solution, zinc nitrate solution and lead nitrate solution respectively. Each solution is divided into two portions (i) and (ii). Describe the effect of
(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.

Distinguish by adding : Sodium hydroxide solution and ammonium hydroxide solution to
(a) Calcium salt solution and lead salt solution.
(b) Lead salt solution and zinc salt solution.
(c) Copper salt solution and ferrous salt solution.
(d) Fe(II) salt solution and Fe(III) salt solution.
(e) Ferrous nitrate and lead nitrate

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Zinc nitrate	Calcium nitrate
When Sodium hydroxide solution is added a white precipitate is formed which is soluble in excess of sodium hydroxide.	When Sodium hydroxide solution is added a white precipitate is formed which is insoluble in excess of Sodium hydroxide.

State the effect of adding a small amount of a] sodium hydroxide b] ammonium hydroxide followed by an excess in each case to samples of each of the salt solutions:Zinc nitrate solution and calcium nitrate solution.

Zinc nitrateCalcium nitrateWhen Sodium hydroxide solution is added a white precipitate is formed which is soluble in excess of sodium hydroxide.When Sodium hydroxide solution is added a white precipitate is formed which is insoluble in excess of Sodium hydroxide.

State the effect of adding a small amount of a] sodium hydroxide b] ammonium hydroxide followed by an excess in each case to samples of each of the salt solutions:
Zinc nitrate solution and calcium nitrate solution.

Zinc nitrate
Calcium nitrate
When Sodium hydroxide solution is added a white precipitate is formed which is soluble in excess of sodium hydroxide.
When Sodium hydroxide solution is added a white precipitate is formed which is insoluble in excess of Sodium hydroxide.