Study and practice Chemistry past questions with answers and detailed explanations. Then test your knowledge using our interactive CBT practice platform and prepare confidently for your upcoming examinations.
Create and set up a CBT environment with your preferred subjects.
Practice JAMB CBT with real UTME past questions in CBT format.
CB-WASSCE styled past question practice.
SSCE & GCE styled past question practice.
Iodine could be separated from the mixture of iodine and Calcium chloride by
Which of the following elements is a metalloid?
If acidified K\(_2\)Cr\(_2\)O\(_7\) acts as an oxidizing agent, the colour changes from
The nucleus of a hydrogen atom consists of
If a gas occupies a volume of 400cm\(^3\) at a temperature of 400K and a pressure of 1 atm, at what temperature and pressure would its volume be 200cm\(^3\)?
Both Na\(^+\) and K\(^+\) have
Which of the following gases is used in fire extinguishers?
Aluminum is extracted by
Nickel is used in the hydrogenation of alkenes because it
Which of the following pairs of gases cannot be collected by downward delivery?
Consider the reaction represented by the following equation:
x Al + yCl\(_2\) → z AlCl\(_3\)
Water pipes are produced from
The oxidation number of iron, in its free state is
How many isomers can be formed from a compound with molecular formula C\(_5\)H\(_{12}\) ?
Tetraoxosulphate (VI) acid is considered as a heavy chemical because
Which of the following compounds is formed by the oxidation of ethanol?
Which of the following is a monomer of polythene?
The main function of limestone in the blast furnace during the extraction of iron is to
An atom of an element in the ground state contains 8 valence electrons. The element is considered as a
When an element exists in two or more forms in the same physical state, it exhibits