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Redox reactions - MYP Questionbank | RevisionDojo

Practice Redox reactions with authentic MYP MYP Chemistry exam questions for both SL and HL students. This question bank mirrors Paper 1, 2, 3 structure, covering key topics like atomic structure, chemical reactions, and organic chemistry. Get instant solutions, detailed explanations, and build exam confidence with questions in the style of MYP examiners.

Type

Difficulty

Question 1

Household bleach often contains sodium hypochlorite ( $\text{NaClO}$ ). How does this chemical primarily remove color from fabric stains?

Question 2

If an aluminium atom reacts to become an aluminium ion ( $\text{Al} \rightarrow \text{Al}^{3+} + 3\text{e}^-$ ), which of the following is correct?

Question 3

Why is a substance that undergoes reduction specifically referred to as an 'oxidising agent'?

Question 4

In a zinc–manganese dioxide dry cell battery, the redox processes at the electrodes can be represented by the following half-equations:

\text{Anode: } \text{Zn(s)} \rightarrow \text{Zn}^{2+}(\text{aq}) + 2e^{-}

\text{Cathode: } \text{MnO}_2(\text{s}) + \text{H}^{+}(\text{aq}) + e^{-} \rightarrow \text{MnO}(\text{OH})(\text{s})

Based on the principle that the total number of electrons lost must equal the total number of electrons gained in a redox reaction, what is the molar ratio of $\text{Zn}$ to $\text{MnO}_2$ consumed in the overall cell reaction?

Question 5

Which of the following statements correctly describes the redox nature of cellular respiration?

Question 6

True or False: In any redox reaction, oxidation can occur independently without a corresponding reduction process taking place.

Question 7

Which of the following statements correctly describes the behavior of a reducing agent?

Question 8

If an element in a chemical reaction undergoes a change where its oxidation state moves from $+2$ to $+4$ , which statement correctly describes the electron transfer involved?

Question 9

In the context of redox reactions, an oxidizing agent is defined as a substance that __________ electrons from another species, thereby causing that species to be _________.

Question 10

When an atom of magnesium reacts to form an ion ( $\text{Mg}^{2+}$ ), the atom acts as a(n) __________.

Type

Difficulty

Question 1

Household bleach often contains sodium hypochlorite ( $\text{NaClO}$ ). How does this chemical primarily remove color from fabric stains?

Question 2

If an aluminium atom reacts to become an aluminium ion ( $\text{Al} \rightarrow \text{Al}^{3+} + 3\text{e}^-$ ), which of the following is correct?

Question 3

Why is a substance that undergoes reduction specifically referred to as an 'oxidising agent'?

Question 4

In a zinc–manganese dioxide dry cell battery, the redox processes at the electrodes can be represented by the following half-equations:

\text{Anode: } \text{Zn(s)} \rightarrow \text{Zn}^{2+}(\text{aq}) + 2e^{-}

\text{Cathode: } \text{MnO}_2(\text{s}) + \text{H}^{+}(\text{aq}) + e^{-} \rightarrow \text{MnO}(\text{OH})(\text{s})

Question 5

Which of the following statements correctly describes the redox nature of cellular respiration?

Question 6

True or False: In any redox reaction, oxidation can occur independently without a corresponding reduction process taking place.

Question 7

Which of the following statements correctly describes the behavior of a reducing agent?

Question 8

If an element in a chemical reaction undergoes a change where its oxidation state moves from $+2$ to $+4$ , which statement correctly describes the electron transfer involved?

Question 9

In the context of redox reactions, an oxidizing agent is defined as a substance that __________ electrons from another species, thereby causing that species to be _________.

Question 10

When an atom of magnesium reacts to form an ion ( $\text{Mg}^{2+}$ ), the atom acts as a(n) __________.

Type

Difficulty

Question 1

Household bleach often contains sodium hypochlorite ( $\text{NaClO}$ ). How does this chemical primarily remove color from fabric stains?

Question 2

If an aluminium atom reacts to become an aluminium ion ( $\text{Al} \rightarrow \text{Al}^{3+} + 3\text{e}^-$ ), which of the following is correct?

Question 3

Why is a substance that undergoes reduction specifically referred to as an 'oxidising agent'?

Question 4

In a zinc–manganese dioxide dry cell battery, the redox processes at the electrodes can be represented by the following half-equations:

\text{Anode: } \text{Zn(s)} \rightarrow \text{Zn}^{2+}(\text{aq}) + 2e^{-}

\text{Cathode: } \text{MnO}_2(\text{s}) + \text{H}^{+}(\text{aq}) + e^{-} \rightarrow \text{MnO}(\text{OH})(\text{s})

Question 5

Which of the following statements correctly describes the redox nature of cellular respiration?

Question 6

True or False: In any redox reaction, oxidation can occur independently without a corresponding reduction process taking place.

Question 7

Which of the following statements correctly describes the behavior of a reducing agent?

Question 8

If an element in a chemical reaction undergoes a change where its oxidation state moves from $+2$ to $+4$ , which statement correctly describes the electron transfer involved?

Question 9

In the context of redox reactions, an oxidizing agent is defined as a substance that __________ electrons from another species, thereby causing that species to be _________.

Question 10

When an atom of magnesium reacts to form an ion ( $\text{Mg}^{2+}$ ), the atom acts as a(n) __________.

Redox reactions Questionbank