B: 3
Oracle Prep sorts past-paper questions by topic, so you can drill Atomic Structure and see which topics are most likely to come up next.
Sign up free →Questions and mark schemes are from past examination papers and remain the copyright of the exam board. How Oracle Prep builds its content
Which row shows the correct number of protons and electrons in the ion of an element in Group II of the Periodic Table?
A drop of liquid bromine is placed in the bottom of a gas jar. Brown fumes of bromine vapour slowly spread through th…
Which statement about both chlorine atoms and chloride ions is correct?
Petroleum is separated into fractions by fractional distillation. Which fraction distils off at the highest temperature?
Ammonia is made by a reversible reaction between nitrogen and hydrogen. N₂(g) + 3H₂(g) ⇌ 2NH₃(g) ΔH = −92 kJ/mol What…
Aqueous copper(II) sulfate is electrolysed using copper electrodes. The current is constant and the anode (positive e…