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OtisamLMS
Chemistry

Chemistry · Quick practice · answer shown after each question

Preparation of salts and qualitative analysis

Question 1 of 10

Question 1 of 10

The gas that turns lime water milky is ___.

Question 2 of 10

Question 2 of 10

The method used to make a soluble salt from two soluble reactants (acid and alkali) is ___.

Question 3 of 10

Question 3 of 10

The precipitate formed in the test for chloride ions with silver nitrate is silver ___.

Question 4 of 10

Question 4 of 10

Adding acidified barium chloride to a solution gives a white precipitate. The solution contains

Question 5 of 10

Question 5 of 10

A solution X gives the following results. (i) With NaOH(aq), a white precipitate forms which dissolves in excess. (ii) With NH₃(aq), a white precipitate forms which dissolves in excess. (iii) With acidified BaCl₂(aq), a white precipitate forms. Identify the cation and anion in X and explain each result.

Question 6 of 10

Question 6 of 10

The test for the nitrate ion uses

Question 7 of 10

Question 7 of 10

State the tests and observations for the gases (a) hydrogen, (b) oxygen, (c) carbon dioxide, (d) ammonia, (e) chlorine.

Question 8 of 10

Question 8 of 10

An insoluble salt such as barium sulphate is best prepared by

Question 9 of 10

Question 9 of 10

The flame colour of copper(II) ions is ___.

Question 10 of 10

Question 10 of 10

Silver iodide is a white precipitate.

Questions written by OtisamLMS in the style of the WASSCE. They are not WAEC past questions.