Lesson 5.4.2.1
5.4.2.1 Reactions of acids with metals Quiz: AQA Combined Science, Unit 11
20 questions
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Lesson 5.4.2.1, Reactions of acids with metals: 20 multiple choice questions for the AQA GCSE Combined Science (8464), Unit 11: Chemical changes, written with Revision Ninja.
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The 20 questions
-
What are the two products when an acid reacts with a metal?
- Salt and hydrogen
- Salt and water
- Water and hydrogen
- Salt and oxygen
-
What salt is formed when zinc reacts with hydrochloric acid?
- Zinc sulfate
- Zinc hydroxide
- Zinc chloride
- Zinc oxide
-
Which salt forms when magnesium reacts with sulfuric acid?
- Magnesium sulfate
- Magnesium nitrate
- Magnesium carbonate
- Magnesium chloride
-
Which equation correctly shows iron reacting with hydrochloric acid?
- Fe + HCl -> FeCl + H2
- Fe + 2HCl -> FeCl2 + H2
- 2Fe + HCl -> FeCl2 + H2
- Fe + 2HCl -> FeCl3 + H2
-
What salt is produced when iron reacts with dilute sulfuric acid?
- Iron(III) sulfate
- Iron(II) sulfate
- Iron(II) chloride
- Iron sulfide
-
In Mg + 2HCl -> MgCl2 + H2, which species undergoes oxidation?
- Hydrogen ions
- Water
- Chloride ions
- Magnesium
-
In Zn + H2SO4 -> ZnSO4 + H2, which species undergoes reduction?
- Hydrogen ions
- Zinc
- Sulfate ions
- Zinc ions
-
Which ionic equation is correct for magnesium reacting with acid?
- Mg + 2H+ -> Mg2+ + 2H2
- Mg + H+ -> Mg+ + H2
- Mg2+ + H2 -> Mg + 2H+
- Mg + 2H+ -> Mg2+ + H2
-
Why is a metal considered oxidised when it reacts with an acid?
- Loses electrons
- Gains oxygen
- Loses protons
- Gains electrons
-
A burning splint is used to test a gas from the reaction of iron with hydrochloric acid, and it gives a squeaky pop. What is the gas?
- Oxygen
- Hydrogen
- Chlorine
- Carbon dioxide
-
What are the products when zinc reacts with sulfuric acid?
- Zinc sulfate and hydrogen
- Zinc sulfate and water
- Zinc chloride and hydrogen
- Zinc oxide and hydrogen
-
Which three metals are studied for acid reactions in this specification?
- Copper, gold, silver
- Potassium, sodium, lithium
- Magnesium, zinc, iron
- Calcium, copper, iron
-
Which acid produces chlorides when it reacts with metals?
- Sulfuric acid
- Nitric acid
- Hydrochloric acid
- Ethanoic acid
-
How many moles of hydrogen form when 0.1 mol of magnesium reacts with excess hydrochloric acid?
- 0.2 mol
- 0.1 mol
- 0.05 mol
- 0.01 mol
-
What mass of hydrogen forms when 2.4 g of magnesium reacts with excess hydrochloric acid? (Mg = 24, H2 = 2)
- 0.2 g
- 0.1 g
- 0.4 g
- 2.4 g
-
Which observation indicates that a metal is reacting with an acid?
- Bubbles of gas
- Temperature decreases
- Solution turns blue
- Solid turns purple
-
What mass of magnesium sulfate (Mr 120) forms from 4.8 g of magnesium (0.2 mol) with excess sulfuric acid? (Mg = 24)
- 24 g
- 4.8 g
- 12 g
- 48 g
-
Why does iron react more slowly with acid than magnesium does?
- It has a higher mass
- It is more dense
- It is a transition metal
- It is less reactive
-
What is the charge on the iron ion formed when iron reacts with dilute sulfuric acid to form iron(II) sulfate?
- 0
- 1+
- 3+
- 2+
-
A student reacts dilute sulfuric acid with excess copper oxide and filters off the solid. What is left in the filtrate?
- Copper metal
- Copper oxide only
- Hydrogen gas
- Copper(II) sulfate solution
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