2002 JAMB UTME Chemistry Past Questions

2002

When a salt loses its water of crystallization to the atmosphere on exposure, the process is said to be

2002

Tetraoxosulphate (VI) acid burns the skin by

2002

The solubility of a salt of molar mass 101g at 20oC is 0.34 mol dm-3. If 3.40g of the salt is dissolved completely in 250cm3 of water in a beaker, the resulting solution is

2002

The product of the electrolysis of dilute sodium hydroxide using platinum electrodes are

2002

CU2S(s) + O2(g) → 2CU(s) + SO2(g)What is the change in the oxidation number of copper in the reaction above?

2002

The property which makes alcohol soluble in water is the

2002

The substance least considered as a source of environmental pollution is

2002

25cm3 of a 0.2 mol dm3 solution of Na2CO3 requires 20 cm3 of a solution of HCl for neutralization. The concentration of the HCl solution is

2002

Three drops of a 1.0 mol dm-3 solution of NaOH are added to 20 cm3 of a solution of pH 8.4. The pH of the resulting solution will be

2002

An example of element that can catenate is

2002

Which of the following gives a precipitate when treated with NaOH solution?

2002

Ethanol can easily be produced by

2002

The gas that gives brown colouration in brown ring test is

2002

Steam changes the colour of anhydrous cobalt (II) chloride from

2002

A red precipitate of copper (I) carbide is formed when ammonium solution of copper (I) chloride is introduced into

2002

Ordinary glass is manufactured from silica, CaCO3 and

2002

Which of these pairs are synthetic and natural macromolecules respectively?

2002

The number of isomers formed by C6H14 is

2002

The reaction of an alkene with hydrogen in the presence of catalyst is

2002

The intermediate product formed when ethanol is progressively oxidized to ethanoic acid with potassium heptaoxodichromate (IV) is

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