Question 38
Question 38 of 40
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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
16. Hydroxy compounds
16.1. Alcohols

deduce the presence of a CH\(_3\)CH(OH)- group in an alcohol, CH\(_3\)CH(OH)-R, from its reaction with alkaline I\(_2\)(aq) to form a yellow precipitate of tri-lodomethane and an ion, \( RCO_2^-\)

9. The Periodic Table: ch...
9.2. Periodicity of chemical proper...

describe, explain, and write equations for, the acid/base behaviour of the oxides Na₂O, MgO, Al₂O₃, P₄O₁₀, SO₂ and SO₃ and the hydroxides NaOH, Mg(OH)₂ and Al(OH)₃ including, where relevant, amphoteric behaviour in reactions with acids and bases (sodium hydroxide only)

7. Equilibria
7.2. Brønsted–Lowry theory of acids...

state the names and formulas of the common acids, limited to hydrochloric acid, HCl, sulfuric acid, \( H_2SO_4 \), nitric acid, \( HNO_3 \), ethanoic acid, \( CH_3COOH \)