PractiseQuestion bank
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12 questions
SA-AC-AR-0011 markL1 FoundationCalculatorSubstitution
Benzene typically undergoes
Salam Academy Original Practice · Proposed mark scheme
SA-AC-AR-0121 markL1 FoundationCalculatorStructure
The bond angle in benzene is
Salam Academy Original Practice · Proposed mark scheme
SA-AC-AR-0021 markL2 StandardCalculatorSubstitution
The electrophile in nitration of benzene is
Salam Academy Original Practice · Proposed mark scheme
SA-AC-AR-0031 markL2 StandardCalculatorSubstitution
Nitration of benzene requires
Salam Academy Original Practice · Proposed mark scheme
SA-AC-AR-0042 marksL2 StandardCalculatorStructure
Enthalpy of hydrogenation of cyclohexene is −120 kJ mol⁻¹ and of benzene −208 kJ mol⁻¹. By how much (kJ mol⁻¹) is benzene more stable than the Kekulé structure?
Salam Academy Original Practice · Proposed mark scheme
SA-AC-AR-0051 markL2 StandardCalculatorStructure
Evidence that benzene doesn't have alternating single and double bonds:
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SA-AC-AR-0061 markL2 StandardCalculatorSubstitution
In the bromination of benzene, FeBr₃ acts as
Salam Academy Original Practice · Proposed mark scheme
SA-AC-AR-0071 markL2 StandardCalculatorSubstitution
Benzene + ethanoyl chloride with AlCl₃ gives
Salam Academy Original Practice · Proposed mark scheme
SA-AC-AR-0081 markL2 StandardCalculatorMethylbenzene
Methylbenzene heated with alkaline KMnO₄, then acidified, gives
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SA-AC-AR-0101 markL2 StandardCalculatorMethylbenzene
Methyl groups direct incoming electrophiles to positions
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SA-AC-AR-0091 markL3 ExamCalculatorMethylbenzene
Methylbenzene + Cl₂ in UV light gives mainly
Salam Academy Original Practice · Proposed mark scheme
SA-AC-AR-0113 marksL3 ExamCalculatorSubstitution
7.80 g of benzene (Mr 78.0) gives 9.84 g of nitrobenzene (Mr 123). Calculate the percentage yield. Salam Academy Original Practice · Proposed mark scheme