Lesson 4.4.2.1
4.4.2.1 Reactions of acids with metals Quiz: AQA Chemistry, Unit 4
20 questions
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Lesson 4.4.2.1, Reactions of acids with metals: 20 multiple choice questions for the AQA GCSE Chemistry (8462), Unit 4: Chemical changes, written with Revision Ninja.
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The 20 questions
-
What two products are formed when zinc reacts with dilute hydrochloric acid?
- Salt and hydrogen
- Metal and water
- Salt and oxygen
- Acid and water
-
What is the salt produced when magnesium reacts with dilute sulfuric acid?
- Magnesium sulfite
- Magnesium sulfate
- Magnesium hydroxide
- Magnesium chloride
-
Which gas is released when iron reacts with dilute hydrochloric acid?
- Carbon dioxide
- Chlorine
- Oxygen
- Hydrogen
-
Of magnesium, zinc and iron, which reacts most vigorously with dilute hydrochloric acid at room temperature?
- All react equally
- Magnesium
- Iron
- Zinc
-
Iron reacts with dilute hydrochloric acid to form iron(II) chloride. What is its formula?
- FeCl3
- Fe2Cl
- FeCl
- FeCl2
-
What is the formula of zinc sulfate?
- ZnSO4
- ZnS
- ZnSO3
- Zn2SO4
-
Which product is formed alongside the salt when magnesium reacts with sulfuric acid?
- Sulfur dioxide
- Oxygen
- Water
- Hydrogen
-
In the reaction Mg + 2HCl -> MgCl2 + H2, what happens to magnesium?
- It is neutralised
- It is displaced
- It is oxidised
- It is reduced
-
In the reaction Zn + 2H+ -> Zn2+ + H2, what happens to the hydrogen ions?
- They are oxidised
- They are neutralised
- They are reduced
- They are displaced
-
Higher tier: In Fe + 2HCl -> FeCl2 + H2, which species is the reducing agent?
- HCl
- H2
- Fe
- FeCl2
-
Higher tier: How many electrons does each hydrogen ion gain when it forms hydrogen gas?
- Three
- Zero
- Two
- One
-
Higher tier: Which half equation shows oxidation?
- Mg2+ + 2e- -> Mg
- Mg -> Mg2+ + 2e-
- Cl2 + 2e- -> 2Cl-
- 2H+ + 2e- -> H2
-
A 0.1 mol sample of magnesium reacts completely with excess dilute hydrochloric acid. How many moles of hydrogen form?
- 0.05
- 0.3
- 0.2
- 0.1
-
Why does a metal-acid reaction stop when the metal is fully used up?
- Dynamic equilibrium
- Limiting reactant
- Catalyst poison
- Activation energy
-
What observation identifies hydrogen gas during a metal-acid reaction?
- Squeaky pop
- Limewater turns milky
- Glows brightly
- Bleaches damp litmus
-
Which salt is produced when zinc reacts with dilute sulfuric acid?
- Zinc nitrate
- Zinc sulfide
- Zinc chloride
- Zinc sulfate
-
Why is the reaction of zinc with dilute acid classified as a redox reaction?
- Electron transfer
- Ion sharing
- Neutron transfer
- Proton transfer
-
Which pair of metals both react with dilute sulfuric acid to produce hydrogen?
- Silver and iron
- Magnesium and zinc
- Gold and magnesium
- Copper and zinc
-
Iron filings are added to excess dilute hydrochloric acid until no more reacts. What is the main salt in the resulting solution?
- Iron chloride oxide
- Iron(III) chloride
- Iron(II) chloride
- Iron sulfate
-
Higher tier: In Zn + H2SO4 -> ZnSO4 + H2, which species is oxidised?
- Zn
- ZnSO4
- H2
- H2SO4
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