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Practise

Question bank

Original exam-style questions, mapped to your syllabus. Answers are checked for mathematical equivalence and every attempt updates your mastery.

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2730 questions · page 62 of 137 · choose a topic above to narrow them down

SA-OC-FA-0021 markL1 FoundationCalculatorCrude oil
Crude oil is separated by
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SA-OC-FA-0041 markL1 FoundationCalculatorCrude oil
Bitumen is used for
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SA-OC-FE-0011 markL1 FoundationCalculatorFormulae
The formula of calcium hydroxide is
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SA-OC-FE-0021 markL1 FoundationCalculatorBalancing
Balance: _ H2+O2→2H2O\mathrm{\_\,H_2+O_2\rightarrow 2H_2O}. What number goes in front of H2\mathrm{H_2}?

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Salam Academy Original Practice · Proposed mark scheme
SA-OC-FE-0041 markL1 FoundationCalculatorFormulae
The formula of ammonium sulfate is
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Salam Academy Original Practice · Proposed mark scheme
SA-OC-FE-0051 markL1 FoundationCalculatorBalancing
The state symbol for a substance dissolved in water is
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SA-OC-FZ-0011 markL1 FoundationCalculatorNPK
The three main elements in NPK fertilisers are
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SA-OC-FZ-0021 markL1 FoundationCalculatorNPK
Which compound supplies potassium?
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SA-OC-GR-0011 markL1 FoundationCalculatorGroup I
Sodium reacts with water to produce
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SA-OC-GR-0021 markL1 FoundationCalculatorGroup I
Down group I, reactivity
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SA-OC-GR-0031 markL1 FoundationCalculatorGroup VII
At room temperature bromine is a
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SA-OC-GS-0011 markL1 FoundationCalculatorGiant covalent
In diamond, how many other carbon atoms is each carbon atom covalently bonded to?

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Salam Academy Original Practice · Proposed mark scheme
SA-OC-GS-0021 markL1 FoundationCalculatorGiant covalent
In graphite, how many other carbon atoms is each carbon atom covalently bonded to?

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Salam Academy Original Practice · Proposed mark scheme
SA-OC-GS-0031 markL1 FoundationCalculatorGiant covalent
Graphite is used as a lubricant because
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SA-OC-GS-0051 markL1 FoundationCalculatorMetallic bonding
Metallic bonding is the attraction between
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SA-OC-IB-0011 markL1 FoundationCalculatorIons
A magnesium atom forms an ion by
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Salam Academy Original Practice · Proposed mark scheme
SA-OC-IB-0021 markL1 FoundationCalculatorIons
The charge on an oxide ion is
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Salam Academy Original Practice · Proposed mark scheme
SA-OC-IB-0031 markL1 FoundationCalculatorIonic bonding
The formula of aluminium oxide is
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Salam Academy Original Practice · Proposed mark scheme
SA-OC-IB-0041 markL1 FoundationCalculatorIonic bonding
An ionic bond is
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Salam Academy Original Practice · Proposed mark scheme
SA-OC-IB-0051 markL1 FoundationCalculatorProperties
Solid sodium chloride does not conduct electricity because
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Salam Academy Original Practice · Proposed mark scheme