GCE Chemistry 2022
Past Questions

Which of the following pairs of elements have the same number of neutrons?

Which of the following statements correctly describes the kinetic theory assumption about gas molecules?

Which indicator would be most suitable for a titration involving a weak acid and a strong base?

In the reaction: $2Fe^{3+} + Sn^{2+} \rightarrow 2Fe^{2+} + Sn^{4+}$, which species is the reducing agent?

In an electrolytic cell, a current of 2.0 A is passed through a solution of copper(II) sulphate for 1 hour 4 minutes and 20 seconds. What mass of copper is deposited at the cathode? [Cu = 64, F = 9650…

The graph of ln(rate) against 1/T for a chemical reaction gives a straight line with a negative slope. This slope is equal to

Adding an inert gas at constant volume to an equilibrium mixture of gases will

A metal X reacts with cold water to give a colourless gas and an alkaline solution. When the gas is ignited, it burns with a squeaky pop. Metal X is most likely

Which of the following correctly describes the trend in metallic character across Period 3 of the periodic table from left to right?

In the contact process for the manufacture of tetraoxosulphate(VI) acid, sulphur(IV) oxide is oxidized to sulphur(VI) oxide using a vanadium(V) oxide catalyst. Which of the following best explains why…

a) Define the term 'electronegativity' and explain how it varies across Period 3 and down Group VII of the periodic table. (4 marks) b) Using dot-and-cross diagrams, show the bonding in the following…

a) i) What is meant by a 'coordinate bond' (dative covalent bond)? (2 marks) ii) Draw the structure of the ammonium ion (NH4+) showing how the coordinate bond is formed from ammonia and a hydrogen …