paper-1a – Page 12 – Vertex Learnbox

M25-CHEM-HL-TZ1-P1A-Q11

Which row puts these molecules in order of decreasing bond \angle?

Kekul\acute{e} suggested a structure of benzene with alternating single and double bonds. Which piece of evidence disproves this structure?

Germanium has several stable oxidation states. Which row shows these species in order of increasing radius?

Which statement explains the trend in first ionisation energy from sodium, Na, to chlorine, Cl?

The volume of a container filled with a fixed amount of gas is increased by 100% at constant temperature. How

Which diagram shows the correct electron configuration of a nitrogen atom in the ground state?

Which row shows a gas that would deviate the least from ideal gas behaviour?

Which row shows the correct formula and electron configuration of the species in calcium nitride?

In which of the following molecules do all atoms obey the octet rule? I. \( NF_3 \) II. \( BF_3

The diagram below shows the behaviour of protons, neutrons and electrons in an electric field. The particle beam splits into