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Redox Processes

Each subtopic includes About section, revision page link, 10 preview questions, and practice CTAs.

Oxidation and reduction

Subtopic

Oxidation and reduction under Redox Processes for Grade 12 IB.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    Which of the following processes corresponds to a decrease in the oxidation number of an element?

    A.

    Oxidation

    B.

    Reduction

    C.

    Ionization

    D.

    Combustion

  2. 2.

    What is the oxidation state of nitrogen in nitrous acid, HNO2HNO_{2}?

    A.

    +1

    B.

    +2

    C.

    +3

    D.

    +5

  3. 3.

    Which of the following elements commonly exhibits multiple positive oxidation states?

    A.

    Sodium

    B.

    Iron

    C.

    Magnesium

    D.

    Aluminum

Download the worksheet for Redox Processes - Oxidation and reduction to practice offline. It includes additional chapter-level practice questions.

Electrochemical cells

Subtopic

Electrochemical cells under Redox Processes for Grade 12 IB.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    In a cell diagram, the cathode is traditionally written on which side?

    A.

    Left side

    B.

    Right side

    C.

    Middle

    D.

    Bottom

  2. 2.

    Which of the following characterizes an 'inert' electrode?

    A.

    It reacts with the electrolyte

    B.

    It is consumed during the reaction

    C.

    It conducts electricity but does not react

    D.

    It is always made of zinc

  3. 3.

    In the reaction Fe2++Ag+β†’Fe3++AgFe^{2+} + Ag^{+} \rightarrow Fe^{3+} + Ag, which species is the reducing agent?

    A.

    Fe2+Fe^{2+}

    B.

    Ag+Ag^{+}

    C.

    Fe3+Fe^{3+}

    D.

    AgAg

Download the worksheet for Redox Processes - Electrochemical cells to practice offline. It includes additional chapter-level practice questions.