Course review

3.2 Electron transfer reactions

Review each learning objective in this topic, then open its concept explanation or question set.

11 Learning objectives0 Mastered0% Topic mastery0 Attempts

Learning objective

3.2.1—Oxidation and reduction

New

• Electron transfer, oxidation state change • Oxygen gain/loss, hydrogen loss/gain • Oxidizing/reducing agents • Deduce oxidation states and identify oxidized/reduced species

0%
Mastery
0
Attempts
0
Mistakes

Start with the concept explanation, then practise to create mastery evidence.

Learning objective

3.2.2—Half-equations

New

• Separate oxidation and reduction • Show electron loss/gain • Deduce redox half-equations and equations in acidic or neutral solutions

0%
Mastery
0
Attempts
0
Mistakes

Start with the concept explanation, then practise to create mastery evidence.

Learning objective

3.2.3—Periodic trends in redox

New

• Metals: ease of oxidation • Halogens: ease of reduction • Metal displacement reactions • Predict metal oxidation and halogen reduction using supplied data

0%
Mastery
0
Attempts
0
Mistakes

Start with the concept explanation, then practise to create mastery evidence.

Learning objective

3.2.4—Acids with reactive metals

New

• Release H₂ gas • Deduce equations for reactive metals with dilute acids

0%
Mastery
0
Attempts
0
Mistakes

Start with the concept explanation, then practise to create mastery evidence.

Learning objective

3.2.5—Electrodes in electrochemical cells

New

• Oxidation at anode • Reduction at cathode • Signs/polarities in voltaic vs. electrolytic cells • Identify anode/cathode from electrode reactions

0%
Mastery
0
Attempts
0
Mistakes

Start with the concept explanation, then practise to create mastery evidence.

Learning objective

3.2.6—Primary (voltaic) cells

New

• Spontaneous redox → electrical energy • Electron flow: anode → cathode (external circuit) • Ion movement across salt bridge • Include metal/metal ion half-cells, circuit, and salt bridge

0%
Mastery
0
Attempts
0
Mistakes

Start with the concept explanation, then practise to create mastery evidence.

Learning objective

3.2.7—Secondary (rechargeable) cells

New

• Redox reactions reversible with electrical energy • Deduce charging reactions from discharge reactions and compare cell types

0%
Mastery
0
Attempts
0
Mistakes

Start with the concept explanation, then practise to create mastery evidence.

Learning objective

3.2.8—Electrolytic cells

New

• Electrical energy → chemical energy • Non-spontaneous reactions • Electrolysis of molten salts • Explain current conduction and deduce molten salt electrolysis products

0%
Mastery
0
Attempts
0
Mistakes

Start with the concept explanation, then practise to create mastery evidence.

Learning objective

3.2.9—Oxidation of organic functional groups

New

• Primary alcohols → aldehydes → carboxylic acids • Secondary alcohols → ketones • Include distillation/reflux setup and that tertiary alcohols are not oxidized similarly

0%
Mastery
0
Attempts
0
Mistakes

Start with the concept explanation, then practise to create mastery evidence.

Learning objective

3.2.10—Reduction of organic functional groups

New

• Carboxylic acids → aldehydes → primary alcohols • Ketones → secondary alcohols • Include hydride ion role; specific reducing agents and mechanisms are not assessed

0%
Mastery
0
Attempts
0
Mistakes

Start with the concept explanation, then practise to create mastery evidence.

Learning objective

3.2.11—Reduction of unsaturated compounds

New

• Addition of H₂ lowers unsaturation • Alkenes + H₂, alkynes + H₂ • Deduce hydrogenation products of alkenes and alkynes

0%
Mastery
0
Attempts
0
Mistakes

Start with the concept explanation, then practise to create mastery evidence.