The diagram represents
Chemistry Past Questions
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.
Take a test
Custom CBT
Create and set up a CBT environment with your preferred subjects.
JAMB CBT Simulator
Practice JAMB CBT with real UTME past questions in CBT format.
WAEC CBT Practice 2026 Simulator
CB-WASSCE styled past question practice.
NECO CBT Practice 2026 Simulator
SSCE & GCE styled past question practice.
Past Questions
2,505 questionsThe functional groups present in the compound above are
In the process above, P and Q respectively represent
The compound above exhibits
MnO\(_4\)(aq) + Y + 5Fe\(^{2+}\) (aq) \(\mapsto\) Mn\(^{2+}\) (aq) + 5Fe\(^{3+}\) (aq) + 4H\(_2\)O (l).
In the equation above, Y is
A chemical reaction in which the hydration energy is greater than the lattice energy is referred to as
[F = 96500 C mol1. Molar volume of a gas at s.t.p = 22.4dm3]
In a neutralization reaction involving HCI and NaOH using litmus as indicator, the colour at the end point is
In the extraction of iron, the waste gas from the furnace is a mixture of
The number of electronic shells contained in an atom with electron configuration 1S\(^2\)2S\(^2\)2P\(^6\)3S\(^2\)3P\(^6\)4S\(^2\) is
Ethanol is soluble in water due to the presence of a
What volume of 0.5M H2SO4 will exactly neutralize 20cm3 of 0.1M NaOH Solution?