1998 JAMB UTME Chemistry Past Questions

1998

Soap lather is an example of a colloid in which a?

1998

Which of the following is observed when a solution of iron (III) chloride is mixed with a solution of sodium hydroxide?

1998

The oxide that remains unchanged when heated in hydrogen is?

1998

A solution containing chloride ions gives white precipitate with silver trioxonitrate(V) Solution. The precipitate will be insoluble in dilute?

1998

3CuO(s) + 2NH3(g) → 3Cu(s) + 3H2O(I) N2(g) (i).2NH3(g) + 3Cl2(g) → 6HCl(g) + N2(g) (ii).4NH3(g) + 3O2(g) → 6H2O(I) + 2N2(g) (iii).The reactions represented by the equations above demonstrate the?

1998

A gas that turns a filter paper previously soaked in lead ethanoate solution black is?

1998

On cracking medicinal paraffin, a gas is evolved which gives a pop sound with a lighted splinter and an oily liquid which decolourizes bromine solution is also obtained. The products of the cracking are ?

1998

One mole of hydrocarbon contains 6g of hydrogen. If the molecular weight is 54, the hydrocarbon is an?

1998

Alloys are often used in preference to pure metals because?

1998

A common characteristic shared by iron and aluminium is that both?

1998

The metal that will react with water only in the form of steam to liberate hydrogen gas is?

1998

Which of the following is true concerning the properties of benzene and hexane?

1998

Terylene is synthesized from ethane- 1, 2-diol and benzene - 1, 4-dicarboxylic acid by?

1998

An example of aromatic compound is?

1998

How many structural isomers can be drawn for the non-cyclic alkanol with molecular formula C 4H10O?

1998

In the experiment above, X could be a solution of

1998

In the diagram above , the activation energy for the backward reaction is

1998

The diagram above represents an atom that can combine with chlorine to form

1 2