In which of the following will hydrogen form ionic compound?
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
4,306 questions2H\(_2\) + O\(_2\) → 2H\(_2\)O
From the equation above, calculate the volume of unreacted oxygen gas if a mixture of 50cm\(^3\) of hydroden and 75cm\(^3\) of oxygen are involved
An organic compound contains 69% carbon, 15.3% hydrogen and 30.7% oxygen. Calculate the the empirical formula [C=12, H = 1, O = 16]
Crude petroleum is converted to useful products by the process of?
An organic compound which decolorizes bromine water is likely to be?
In order to electroplate spoon with silver, the arrangement of the electrolytic cell is?
A colored gas that is known to be poisonous and can readily damage the mucous lining of the lungs is?
An organic functional group which can likely decolorize ammoniacal silver nitrate is?
Zn + 2HCL → ZnCl\(_2\) + H\(_2\)
What happens to zinc in the above reaction?
N\(_2\)O\(_4\) ⇔ 2NO\(_2\) (Δ = -ve)
From the reaction above, which of these conditions would produce the highest equilibrium yield for N\(_2\)O\(_4\)?
An organic compound with fishy smell is likely to have a general formula?
Using the metal activity series, the metal that can liberate hydrogen gas from steam is?
Addition of charcoal to the filter bed of sand during water treatment for township supply is to?
On the basis of the electrochemical series, which of these ions will show the greater tendency to be discharged at the cathode in an electrolytic cell
A chemical widely used as a fertilizer is?
Addition of sodium chloride to water to form a solution would lead to?
An organic compound which liberate carbon(iv)oxide from trioxocarbonate(iv) solution is likely to be?
The sulphide that is commonly used in coating electric fluorescent tubes is?
How many neutrons are present in atom with mass number and atomic number 37 and 17 respectively?
The following non-metal form acidic oxides with oxygen except?