1993 - JAMB Chemistry Past Questions and Answers - page 1
Which of the following substances is a mixture?
A balanced chemical equation obeys the law of?
How many moles of oxygen molecules would be produced from the decomposition of 2.50 moles of potassium trioxochlorate (V)?
For iodine crystals to sublime on heating, the molecules must acquire energy that is?
An element, E, has the electronic configuration 1s22s22p63s2p3. The reaction of E with a halogen X can give?
Two atoms represented as U and U are?
As the difference in electronegativity between bonded atoms increases, polarity of the bond?
Which group of elements forms hydrides that are pyramidal in structure?
Water has a rather high boiling point despite its low molecular mass because of the presence of?
Argon is used in gas-filled electric lamp because it helps to?