Question 37
Question 37 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

11. Group 17
11.4. The reactions of chlorine

explain, including by use of an equation, the use of chlorine in water purification to include the production of the active species HOCI and CIO\(^-\) which kill bacteria

12. Nitrogen and sulfur
12.1. Nitrogen and sulfur

describe the role of NO and NO\(_2\) in the formation of acid rain both directly and in their catalytic role in the oxidation of atmospheric sulfur dioxide