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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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12 questions

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
SA-OC-IB-0071 markL1 FoundationCalculatorIons
How many electrons does a Na+\mathrm{Na^+} ion have? (Na: Z=11Z=11)

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Salam Academy Original Practice · Proposed mark scheme
SA-OC-IB-0121 markL1 FoundationCalculatorIonic bonding
Ionic bonding usually occurs between
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Salam Academy Original Practice · Proposed mark scheme
SA-OC-IB-0061 markL2 StandardCalculatorProperties
Magnesium oxide has a very high melting point because
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Salam Academy Original Practice · Proposed mark scheme
SA-OC-IB-0081 markL2 StandardCalculatorIons
How many electrons does a sulfide ion, S2−\mathrm{S^{2-}}, have? (S: Z=16Z=16)

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Salam Academy Original Practice · Proposed mark scheme
SA-OC-IB-0091 markL2 StandardCalculatorIonic bonding
The formula of calcium nitride (nitride ion N3−\mathrm{N^{3-}}) is
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Salam Academy Original Practice · Proposed mark scheme
SA-OC-IB-0101 markL2 StandardCalculatorProperties
An unknown solid has a high melting point, doesn't conduct as a solid, but conducts when dissolved in water. It is most likely
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Salam Academy Original Practice · Proposed mark scheme
SA-OC-IB-0111 markL3 ExamCalculatorIonic bonding
In the formation of magnesium fluoride, which statement is correct?
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Salam Academy Original Practice · Proposed mark scheme