Question 8
Question 8 of 40
Question image for Q8
Periodic Table
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No letter options?
Older MCQs might not have the typical A, B, C, D choices. They have choices 1, 2, 3, and a combination of them is the answer. Below is the key that maps such combinations to the answer.
A 1, 2 and 3 are correct
B 1 and 2 only are correct
C 2 and 3 only are correct
D 1 only is correct
Topics Tested
5. Chemical energetics
5.1. Enthalpy change, \(\Delta H\)

construct and interpret a reaction pathway diagram, in terms of the enthalpy change of the reaction and of the activation energy

21. Organic synthesis
21.1. Organic synthesis

analyse a given synthetic route in terms of type of reaction and reagents used for each step of it, and possible by-products

14. Hydrocarbons
14.1. Alkanes

recall the reactions (reagents and conditions) by which alkanes can be produced: (a) addition of hydrogen to an alkene in a hydrogenation reaction, \( H_2(g) \) and Pt/Ni catalyst and heat (b) cracking of a longer chain alkane, heat with \( Al_2O_3 \)