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.
The elements that belong to the third period of the periodic table are?
Which of the following decrease when a given mass of gas is compressed to half its initial volume?
If the electron configuration of an element is 1S\(^2\) 2S\(^2\)2P\(^5\), how many unpaired electron are there?
How many electrons are in the L shell of \(^{31}_{15}\)P?
What is the volume of oxygen required to burn complete 45 cm\(^3\) of methane at s.t.p?
Which experiment led to the measurement of the charge on an electron?
MnO\(_2\)(s) + xHCl(aq) → MnCl\(_2\)(aq) + yH\(_2\)O(l) + zCl\(_2\)(g)
In the equation above, what are the values of x, y and z respectively
Dissolving some pellets of NaOH in water would result in
The salt formed from strong acid and a strong base is?
Tartaric acid is used industrially to
How long would it take to deposit 0.08g of copper from CuCl\(_2\) solution by passing a current of 0.5A?
[Cu = 64, 1F = 96500 C mol-1]
C\(_2\)H\(_4\)(g) + H\(_2\)(g) → C\(_2\)H\(_6\)(g) ΔH = -137kJ mol-1
The reaction represented above is
What happens when zinc rod is immersed in copper (II) tetraoxosulphate (VI) solution?
The reaction that takes place in Daniell's cell is
H\(_3\)PO\(_4\)(aq) + H\(_2\)O(l) ↔ H\(_2\)PO\(^{4-}\)(aq) + H\(_3\)O\(^+\)(aq) ΔH = -13kJ at 298K
In the reaction above, an increase in temperature would
If chlorine is bubbled into water and the resulting yellowish-green solution is exposed to bright sunlight for a while, the solution will decompose giving out
Which of the following sets of metals dissolves in dilute HCl?