Testing for Ions in the Lab

Describe the test of calcium ion with sodium hydroxide.

On reaction of sodium hydroxide with Iron(II) ion gives the coloured precipitate. Tell the colour.

Describe the test of iron(II) ion with sodium hydroxide or ammonium solution?

Write the chemical reaction for the product formed by the reaction of ${\mathrm{Al}}^{3+}$ with sodium hydroxide.

The colour of product obtained in the test of bromide ion with silver nitrate is:

What is observed when adding ammonia to ${\mathrm{Cu}}^{2+}$ solution and why does this happen?

What would be the observations when aqueous ammonia is added to a solution of zinc nitrate (until in excess) and heated?

On reaction of sodium hydroxide with Iron $\left(\mathrm{III}\right)$ ion gives a pink coloured precipitate.

On reaction of sodium hydroxide with Iron $\left(\mathrm{III}\right)$ ion gives a coloured precipitate. Identify the colour.

How does ammonia react with the solution of ${\mathrm{Cu}}^{+2}$?

What is silver nitrate test?

The following equation represents double displacement reaction, what is the precipitate formed in this reaction?

${\mathrm{AgNO}}_3\left(\mathrm{aq}\right) + \mathrm{NaI}\left(\mathrm{aq}\right) \to \mathrm{AgI}\left(\mathrm{s}\right) + {\mathrm{NaNO}}_3\left(\mathrm{aq}\right)$

Silver nitrate is used in the test for halides.

Sodium hydroxide cannot be used to identify :

Sodium hydroxide solution can be used to identify zinc ions.

Name the metal which reacts with sodium hydroxide solution, liberating hydrogen gas.

Fractional distillation is a procedure employed to separate mixtures of liquids that have similar boiling points.

Sodium sulphate can be distinguished from sodium sulphite by using

A white sodium salt dissolves in water to give a solution which is neutral to litmus. When silver nitrate solution is added to the solution, a white precipitate is obtained which does not dissolve in dilute ${\mathrm{HNO}}_3$. The anion is

A white gelatinous precipitate is formed when this compound reacts with sodium hydroxide.