2001 - WAEC Chemistry Past Questions and Answers - page 1
Elements which belong to the same group in the Periodic Table are characterized by
The atom of an element X combines with aluminium (13AI)?
The presence of unpaired electrons in an atom of a transition metal gives rise to
What is responsible for metallic bonding?
Which of the following compounds is covalent?
A sheet of paper is placed in the path of a beam from a radioactive source. The emissions that pass through the paper consist of
Which of the following features of a human skeleton can be determined by carbon-dating?
Which of the following statements about ideal gases is/are correct? 1. The cohesive forces between their particles are negligible ll. The have no definite volume but occupy the volume of their containers III. They are not compressible IV. Their particles collide with loss of energy
P Total = F1 + P2 + P 3 + .........Pn' where P Total is the pressure of a mixture of gasses. The equation above is an expression of
Which of the following pairs of reagents reat to produce hydrogen?