Lesson 3.2.4
3.2.4 Properties of Period 3 elements and their oxides Quiz: AQA Chemistry, Unit 2
20 questions
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Lesson 3.2.4, Properties of Period 3 elements and their oxides: 20 multiple choice questions for the AQA Chemistry (7405), Unit 2: Inorganic chemistry, written with Revision Ninja.
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The 20 questions
-
Which Period 3 oxide has the highest melting point of the four: Na2O, MgO, SO3 and P4O10?
- P4O10
- MgO
- SO3
- Na2O
-
What type of structure does silicon(IV) oxide, SiO2, have?
- Metallic lattice
- Giant ionic lattice
- Giant covalent network
- Simple molecular
-
Which Period 3 oxide reacts with water to give a strongly alkaline solution with pH about 14?
- P4O10
- Na2O
- SO2
- Al2O3
-
Which Period 3 oxide does not react with water?
- SiO2
- SO3
- MgO
- Na2O
-
Which equation correctly represents the reaction of sodium with water?
- Na + H2O -> NaOH + H2
- 2Na + 2H2O -> 2NaOH + H2
- Na + 2H2O -> NaOH + O2
- 2Na + H2O -> Na2O + H2
-
Which compound is formed when phosphorus burns in excess oxygen?
- P2O5
- PO2
- P4O10
- P2O3
-
What is observed when magnesium reacts with cold water?
- Rapid gas evolution
- Very slow reaction
- Explosive reaction
- Vigorous effervescence
-
Which equation correctly represents sulfur trioxide reacting with water?
- SO3 + H2O -> H2SO4
- SO3 + H2O -> SO2 + H2O2
- SO3 + 2H2O -> H4SO5
- SO3 + H2O -> H2SO3
-
What mass of magnesium oxide is formed when 2.4 g of magnesium burns completely in oxygen? (Ar: Mg = 24.0, O = 16.0)
- 8.0 g
- 4.0 g
- 2.4 g
- 6.0 g
-
0.50 mol of P4O10 reacts completely with excess water (P4O10 + 6H2O -> 4H3PO4). How many moles of H3PO4 are formed?
- 0.50 mol
- 4.0 mol
- 2.0 mol
- 1.0 mol
-
What are the products of the reaction between sodium oxide and hydrochloric acid?
- NaCl and H2O
- NaClO and H2O
- Na2SO4 and H2O
- NaCl and H2
-
Which reagent dissolves aluminium oxide to show its amphoteric nature?
- Aqueous ammonia
- Sodium hydroxide solution
- Sodium chloride solution
- Dilute ethanoic acid
-
Which equation represents silicon(IV) oxide reacting with sodium hydroxide?
- SiO2 + 2NaOH -> Na2SiO3 + H2O
- SiO2 + NaOH -> NaSiO2 + H2
- SiO2 + NaOH -> NaSiO3 + H2
- SiO2 + 2NaOH -> Na2SiO2 + H2O2
-
What is the oxidation state of sulfur in SO3?
- +4
- -2
- +2
- +6
-
Which ion is the fully deprotonated form of phosphoric acid, H3PO4?
- P2O7^4-
- H2PO4^-
- PO4^3-
- PO3^3-
-
How does oxide character change across Period 3 from sodium to sulfur?
- Basic to acidic
- Amphoteric to basic
- Neutral to acidic
- Acidic to basic
-
How many moles of Na2O react completely with 0.20 mol of HCl? (Na2O + 2HCl -> 2NaCl + H2O)
- 0.10 mol
- 0.20 mol
- 0.40 mol
- 0.05 mol
-
Which Period 3 oxide has the lowest melting point?
- MgO
- Al2O3
- SO2
- Na2O
-
Why does silicon dioxide have a higher melting point than sulfur dioxide?
- Giant covalent structure
- Ionic lattice structure
- Metallic bonding structure
- Simple molecular structure
-
Which acid forms when phosphorus(V) oxide reacts with water?
- Hydrochloric acid
- Sulfuric acid
- Phosphorous acid
- Phosphoric(V) acid
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