Question 26
Question 26 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
11. Group 17
11.4. The reactions of chlorine

describe and interpret, in terms of changes in oxidation number, the reaction of chlorine with cold and with hot aqueous sodium hydroxide and recognise these as disproportionation reactions

18. Carboxylic acids and...
18.1. Carboxylic acids

describe: (a) the redox reaction with reactive metals to produce a salt and H\(_2\)(g) (b) the neutralisation reaction with alkalis to produce a salt and H\(_2\)O(l) (c) the acid–base reaction with carbonates to produce a salt and H\(_2\)O(l) and CO\(_2\)(g) (d) esterification with alcohols with concentrated H\(_2\)SO\(_4\) as catalyst (e) reduction by LiAlH\(_4\) to form a primary alcohol

19. Nitrogen compounds
19.2. Nitriles and hydroxynitriles

recall the reactions by which nitriles can be produced: (a) reaction of a halogenoalkane with KCN in ethanol and heat