paper-1a – Page 20 – Vertex Learnbox

N25-CHEM-HL-TZ1-P1A-Q21 [Q-C871E]

What is the enthalpy change for the reaction in $kJ \cdot mol^{-1}$? $C_{2}H_{2}(g) + 2H_{2}(g) \rightarrow C_{2}H_{6}(g)$ Given standard enthalpies

Which equation represents the enthalpy change of atomisation, $\Delta H_{at}^{\theta}$ of bromine?

Which pair of compounds represents the correct type of isomerism?

The potential energy profile of a reaction is shown. The graph shows Reactants at a lower potential energy than the

Which aqueous solution of an ion is likely to be coloured based on the electron configuration of that ion?

Which molecule contains a chiral centre?

What is the low-resolution 1H NMR spectrum of ethanal?

Which statement is correct for the group 17 elements from fluorine to iodine?

What are the oxidation states of the elements in $Na_{2}CrO_{4}$?

What is the IUPAC name of the molecule below? $CH_{3}-CH(CH_{3})-C(=O)-CH(CH_{3})-CH_{2}-CH_{3}$