2009 - JAMB Chemistry Past Questions and Answers - page 2

The mixture of gases used in a photographer's flash tube is

When sodium trioxocarbonate (IV) decahydrate loses its water of crystallization to the atmosphere, the process is

Water can be obtained as the only product during the

If 10.5g of lead (II) trioxonitrate (V) is dissolved in 20cm³ of distilled water at 18^oC, the solubility of the solute in mol dm^-3 is
[Pb = 207, N = 14, O = 16]

For a given solute, the concentration of its saturated solution in different solvents are

The major source of oxides of nitrogen is from the burning of

The acid used in electrolysis of water is dilute

What volume of 1.5M solution of KOH would contain 0.045 moles

The salt formed from a reaction between citric acid and sodium hydroxide in solution will be

The colour changes observed when testing for reducing agents using acidified potassium heptaoxodichromate (IV) solution is