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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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12 questions

SA-AC-NS-0011 markL1 FoundationCalculatorNitrogen compounds

Nitrogen gas is unreactive mainly because

Salam Academy Original Practice · Proposed mark scheme

SA-AC-NS-0121 markL1 FoundationCalculatorNitrogen compounds

The test for ammonia gas is that it

Salam Academy Original Practice · Proposed mark scheme

SA-AC-NS-0021 markL2 StandardCalculatorNitrogen compounds

The shape of the ammonium ion, NH₄⁺, is

Salam Academy Original Practice · Proposed mark scheme

SA-AC-NS-0031 markL2 StandardCalculatorNitrogen compounds

Ammonia acts as a base because

Salam Academy Original Practice · Proposed mark scheme

SA-AC-NS-0041 markL2 StandardCalculatorNitrogen compounds

Warming ammonium chloride with sodium hydroxide produces

Salam Academy Original Practice · Proposed mark scheme

SA-AC-NS-0051 markL2 StandardCalculatorPollution

Nitrogen monoxide forms in car engines because

Salam Academy Original Practice · Proposed mark scheme

SA-AC-NS-0061 markL2 StandardCalculatorPollution

In a catalytic converter, NO is

Salam Academy Original Practice · Proposed mark scheme

SA-AC-NS-0081 markL2 StandardCalculatorPollution

Photochemical smog requires

Salam Academy Original Practice · Proposed mark scheme

SA-AC-NS-0091 markL2 StandardCalculatorPollution

PAN is a component of

Salam Academy Original Practice · Proposed mark scheme

SA-AC-NS-0101 markL2 StandardCalculatorNitrogen compounds

How many dative bonds are in one NH₄⁺ ion?

Salam Academy Original Practice · Proposed mark scheme

SA-AC-NS-0071 markL3 ExamCalculatorPollution

In the atmosphere, NO₂ catalyses the oxidation of SO₂. Which pair of equations shows this?

Salam Academy Original Practice · Proposed mark scheme

SA-AC-NS-0111 markL3 ExamCalculatorPollution

Nitrates from fertilisers in rivers lead to fish deaths because

Salam Academy Original Practice · Proposed mark scheme