Disproportionation Reactions
Chemistry ⇒ Redox Reactions and Electrochemistry
Disproportionation Reactions starts at 11 and continues till grade 12.
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Describe the change in oxidation state for the element undergoing disproportionation in the reaction: 2NO2 + H2O → HNO2 + HNO3.
Describe the importance of disproportionation reactions in biological systems.
Describe the role of the same element in a disproportionation reaction.
Explain why fluorine does not undergo disproportionation reactions in water.
Describe the change in oxidation state for the element undergoing disproportionation in the reaction: 2NO2 + H2O → HNO2 + HNO3.
Explain why the reaction 2Fe3+ + Fe → 3Fe2+ is not a disproportionation reaction.
Explain why the reaction 2H2O2 → 2H2O + O2 is considered a disproportionation reaction.
Fill in the blank: In the reaction 2HClO → 2HCl + O2, the oxidation state of chlorine changes from _______ to _______ and _______.
Which of the following best defines a disproportionation reaction? (1) A reaction in which a single substance is both oxidized and reduced. (2) A reaction in which two substances are oxidized. (3) A reaction in which two substances are reduced. (4) A reaction in which no redox occurs.
Which of the following elements commonly undergo disproportionation reactions? (1) Sodium (2) Chlorine (3) Neon (4) Magnesium
Which of the following halogens does NOT commonly undergo disproportionation in water? (1) Fluorine (2) Chlorine (3) Bromine (4) Iodine
Which of the following is a correct statement about disproportionation reactions? (1) They always require a catalyst. (2) They involve the same element being both oxidized and reduced. (3) They only occur in acidic solutions. (4) They are not redox reactions.
Fill in the blank: In a disproportionation reaction, the element in the reactant is in an _______ oxidation state.
Fill in the blank: In a disproportionation reaction, the oxidation number of the element in the reactant is _______ the oxidation numbers of the same element in the products.
Fill in the blank: In the reaction 2Cu+ → Cu + Cu2+, copper(I) ion is both _______ and _______.
Fill in the blank: In the reaction 2H2O2 → 2H2O + O2, hydrogen peroxide acts as both an _______ and a _______.
In the reaction 2MnO4- + 3H2O2 + 2H+ → 2MnO2 + 3O2 + 4H2O, is this a disproportionation reaction?
True or False: All redox reactions are disproportionation reactions.
True or False: Disproportionation reactions are a type of redox reaction.
True or False: Disproportionation reactions can only occur in aqueous solutions.
