Practise

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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 126 of 137 · choose a topic above to narrow them down

SA-OC-OI-0041 markL2 StandardCalculatorOrganic formulae

Members of a homologous series differ by

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SA-OC-OI-0051 markL2 StandardCalculatorOrganic formulae

Which compound is unsaturated?

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SA-OC-OX-0031 markL2 StandardCalculatorTypes of oxide

Which oxide is amphoteric?

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SA-OC-OX-0041 markL2 StandardCalculatorTypes of oxide

Which oxide is neutral?

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SA-OC-OX-0051 markL2 StandardCalculatorOxide reactions

Carbon dioxide reacts with sodium hydroxide solution because carbon dioxide is

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SA-OC-PO-0021 markL2 StandardCalculatorAddition polymers

In addition polymerisation

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SA-OC-PO-0031 markL2 StandardCalculatorCondensation polymers

Nylon is a

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SA-OC-PO-0041 markL2 StandardCalculatorCondensation polymers

In condensation polymerisation, the small molecule usually lost is

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SA-OC-PO-0051 markL2 StandardCalculatorCondensation polymers

Proteins are natural

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SA-OC-PR-0032 marksL2 StandardCalculatorProcessing data

Accurate titres:

22.35

22.40

22.80

22.30\ \mathrm{cm^3}

. Calculate the mean of the concordant titres.

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SA-OC-PR-0041 markL2 StandardCalculatorEvaluating

Results that are close to each other are

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SA-OC-PR-0051 markL2 StandardCalculatorProcessing data

Burette readings should be recorded to

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SA-OC-PT-0051 markL2 StandardCalculatorArrangement

Noble gases are unreactive because

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SA-OC-RA-0021 markL2 StandardCalculatorCollision theory

Increasing temperature increases rate mainly because

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SA-OC-RA-0031 markL2 StandardCalculatorCollision theory

A catalyst increases rate by

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SA-OC-RA-0041 markL2 StandardCalculatorCollision theory

Increasing the pressure of a gaseous reaction increases the rate because

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SA-OC-RS-0031 markL2 StandardCalculatorDisplacement

Which reaction occurs?

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SA-OC-RS-0041 markL2 StandardCalculatorReactivity order

Magnesium reacts with steam to give

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SA-OC-RS-0051 markL2 StandardCalculatorDisplacement

Iron nails are put in copper(II) sulfate solution. What is observed?

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SA-OC-RX-0031 markL2 StandardCalculatorRedox definitions

\mathrm{Zn+Cu^{2+}\rightarrow Zn^{2+}+Cu}

, zinc is

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