AQA A-Level Chemistry – Group 2 Exam with Questions and Answers – 100% Solved

AQA A-Level Chemistry – Group 2 Exam with Questions and Answers – 100%
Solved

2 days - ✔✔✔-How long it takes for pure titanium to be extracted?



2NaCl + X(OH)2 - ✔✔✔-The products when a chlorate in group 2 reacts with sodium hydroxide:

XCl2 + 2NaOH -> ____ + ______

HINT: Hydroxides



7 days - ✔✔✔-The cooling period during titanium extraction



BaCl2 - ✔✔✔-How to test for sulphate ions



Decreases - ✔✔✔-Trend in first ionisation energies down the group. This is because the
electrons get further from the nucleus so has a weaker pull from the nucleus



Decreases - ✔✔✔-Trend in melting point down the group. This is because the delocalised
electrons are further from the nucleus as the atomic radius increases



Decreases - ✔✔✔-Trend in solubility of sulphates going down the group



HCl - ✔✔✔-What do you add to the solution before adding BaCl2 to ensure that no CO2 is
formed?



Increases - ✔✔✔-Trend in atomic radius down the group. This trend is due to more orbitals and
a weaker nuclear charge as the charge is offset by the shielding that has come about from more
orbitals



Increases - ✔✔✔-Trend in density down the group. Due to increased protons and neutrons
within the nucleus of the elements