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Physical 1 Section 1 - Unit 7: Redox

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Total cards: 14•Content version: v4•Public deck•Updated: 8/1/2026

Card preview (14)

#1
Front (Question)

Explain what is meant by oxidation in reference to oxygen, hydrogen and electrons (3)

Back (Answer)

• Loss of electrons • Gain of oxygen • Loss of hydrogen

#2
Front (Question)

Explain what is meant by reduction in reference to oxygen, hydrogen and electrons (3)

Back (Answer)

• Gain of electrons • Loss of oxygen • Gain of hydrogen

#3
Front (Question)

In terms of electrons, state the meaning of the term reducing agent (1 mark)

Back (Answer)

• Something that loses electrons OR • Causes another species to gain electrons

#4
Front (Question)

In terms of electrons, state the meaning of the term oxidising agent (1 mark)

Back (Answer)

• Something that gains electrons OR • Causes another species to lose electrons

#5
Front (Question)

Define oxidation state (1)

Back (Answer)

• A number which represents the number of electrons lost or gained by an atom of that element in a compound

#6
Front (Question)

Oxidation of an element in group 1 (1)

Back (Answer)

+1

#7
Front (Question)

Oxidation of an element in group 2 (1)

Back (Answer)

+2

#8
Front (Question)

Oxidation of aluminium (1)

Back (Answer)

+3

#9
Front (Question)

Oxidation of hydrogen (1)

Back (Answer)

+1

#10
Front (Question)

Oxidation of hydrogen in metal hydrides (1)

Back (Answer)

-1

#11
Front (Question)

Oxidation of fluorine (1)

Back (Answer)

-1

#12
Front (Question)

Oxidation of Cl, Br or I (1)

Back (Answer)

-1

#13
Front (Question)

Oxidation of oxygen (1)

Back (Answer)

-2

#14
Front (Question)

Oxidation of oxygen in peroxides/fluorine compounds (1)

Back (Answer)

-1