GCE Chemistry 2024
Past Questions

The electronic configuration of an element is 1s² 2s² 2p⁶ 3s² 3p³. Which of the following correctly describes this element?

An element X has a mass number of 40 and 21 neutrons. The number of electrons in the X²⁺ ion is

How many orbitals are completely filled in an atom of calcium (Z = 20)?

The type of bond present in the ammonium ion, NH₄⁺, that is NOT found in ammonia, NH₃, is

Which of the following molecules is NON-POLAR despite containing polar bonds?

At s.t.p., what volume is occupied by 0.50 mol of carbon(IV) oxide gas?

Which of the following gases would deviate most from ideal gas behaviour at high pressure and low temperature?

Which of the following statements correctly describes oxidation in terms of electron transfer?

Which of the following statements correctly describes an exothermic reaction?

Which of the following statements correctly describes a system at chemical equilibrium?

Which of the following reagents will distinguish between ethene and ethyne?

Which of the following metals is stored under oil to prevent it from reacting with air and moisture?

Aluminium is described as an amphoteric metal because its oxide

When chlorine gas is passed over heated iron, the product formed is

In the thermite reaction, aluminium powder is mixed with iron(III) oxide and ignited. The reaction produces molten iron and aluminium oxide. This reaction is best described as

a) i) State Boyle's Law and Charles' Law. (4 marks) ii) Sketch a clearly labelled graph to show how the pressure of a fixed mass of gas at constant temperature varies with the volume of the gas. (2…

a) State three physical properties that distinguish metals from non-metals. (3 marks) b) The following metals are listed in order of their reactivity: Potassium (K), Calcium (Ca), Zinc (Zn), Iron (Fe…