Question 18
Question 18 of 40
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Periodic Table
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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
7. Equilibria
7.1. Chemical equilibria: reversibl...

describe and explain the conditions used in the Haber process and the Contact process, as examples of the importance of an understanding of dynamic equilibrium in the chemical industry and the application of Le Chatelier’s principle

17. Carbonyl compounds
17.1. Aldehydes and ketones

describe: (a) the reduction of aldehydes and ketones using NaBH\(_4\) or LiAlH\(_4\) to produce alcohols (b) the reaction of aldehydes and ketones with HCN, KCN as catalyst, and heat to produce hydroxymitriles as exemplified by ethanol and propanone

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