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.
Particles in a solid exibit
Which of the following properties would not influence electrovalent bond formation?
The solubility of \(CO_{2}\) in water can be accounted for by
The bonding pair of electrons in a Hydrogen Chloride molecule is pulled towards the chlorine atom because
What is the total number of shared pair of electrons in the compound above?
The atomic number of an isotope of hydrogen is equal to its mass number because it
Which of the following electron configurations represents the transition element Chromium \(_{24}Cr\)?
Common Salt (NaCl) is used to preserve foods. Which of the following properties can be used to determine its purity before use?
Atoms are electrically neutral because they
What is the relative molecular mass of a compound which has empirical formula \(CH_{2}O\)? [C= 12, H= 1, O= 16]
The law of definite proportions states that
Analysis of a hydrocarbon shows that it contains 0.93g of Carbon per gram of the compound. The mole ratio of carbon to hydrogen in the compound is [H = 1.0, C=12.0]
Which of the following statements is true about ionic radius? Ionic radius
Which of the following methods can be used to seperate blood cells from plasma?
The change in the oxidation state of iron in the reaction represented by the equation: \(2FeCl_{3} + H_{2}S \to 2FeCl_{2} + 2HCl + S\) is
The empirical formula of a compound containing 0.067mol Cu and 0.066mol O is [Cu = 63.5, O = 16]
When zinc is added to AgNO\(_{3}\) solution, crystals of silver forms on the zinc surface. This indicates that zinc is
The strength of metallic bonds depends on the
How many atoms are contained in 0.2moles of nitrogen? \([N_{A} = 6.02 \times 10^{23}]\)
When chlorine is passed through a sample of water, the pH of the water sample would be