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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-CB-0011 markL1 FoundationCalculatorTests

2,4-DNPH gives an orange precipitate with

Salam Academy Original Practice · Proposed mark scheme

SA-AC-CB-0121 markL1 FoundationCalculatorNucleophilic addition

NaBH₄ acts as a source of

Salam Academy Original Practice · Proposed mark scheme

SA-AC-CB-0021 markL2 StandardCalculatorTests

Tollens' reagent gives a silver mirror with

Salam Academy Original Practice · Proposed mark scheme

SA-AC-CB-0031 markL2 StandardCalculatorNucleophilic addition

NaBH₄ reduces butanone to

Salam Academy Original Practice · Proposed mark scheme

SA-AC-CB-0041 markL2 StandardCalculatorMechanism

The reaction of HCN with ethanal is

Salam Academy Original Practice · Proposed mark scheme

SA-AC-CB-0051 markL2 StandardCalculatorNucleophilic addition

The product of propanone and HCN is

Salam Academy Original Practice · Proposed mark scheme

SA-AC-CB-0061 markL2 StandardCalculatorTests

Fehling's solution with an aldehyde changes from

Salam Academy Original Practice · Proposed mark scheme

SA-AC-CB-0071 markL2 StandardCalculatorTests

Which gives a positive iodoform test?

Salam Academy Original Practice · Proposed mark scheme

SA-AC-CB-0091 markL2 StandardCalculatorNucleophilic addition

How many carbon atoms are in the product when butanal reacts with HCN?

Salam Academy Original Practice · Proposed mark scheme

SA-AC-CB-0101 markL2 StandardCalculatorMechanism

In nucleophilic addition to C=O, the nucleophile attacks

Salam Academy Original Practice · Proposed mark scheme

SA-AC-CB-0081 markL3 ExamCalculatorMechanism

The HCN addition product of propanal is optically inactive because

Salam Academy Original Practice · Proposed mark scheme

SA-AC-CB-0111 markL3 ExamCalculatorTests

Compound Y (

\mathrm{C_3H_6O}

) gives an orange precipitate with 2,4-DNPH and a silver mirror with Tollens'. Y is

Salam Academy Original Practice · Proposed mark scheme