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Twelfth Grade (Grade 12) Oxidation-Reduction Reactions Questions

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Grade 12 Oxidation-Reduction Reactions
Grade 12 Oxidation-Reduction Reactions
Grade 12 Oxidation-Reduction Reactions
A substance that gains electron(s) is
  1. an oxidizing agent
  2. a reducing agent
  3. a substance that oxidizes
  4. reductant
Grade 12 Oxidation-Reduction Reactions
The oxidation number of I in HOI is
  1. [math]-1[/math]
  2. [math]0[/math]
  3. [math]-2[/math]
  4. [math]+1[/math]
Grade 12 Oxidation-Reduction Reactions
The oxidation number of Cl in [math]KClO_3[/math] is
  1. [math]-1[/math]
  2. [math]-5[/math]
  3. [math]+1[/math]
  4. [math]+5[/math]
Grade 12 Oxidation-Reduction Reactions
A substance that goes to a higher oxidation number is
  1. an oxidising agent
  2. a substance that reduces
  3. a reducing agent
  4. oxidant
Grade 12 Oxidation-Reduction Reactions
The oxidation number of oxygen in an [math]O_2^[2-][/math] ion is
  1. [math]-2[/math]
  2. [math]+1[/math]
  3. [math]-1[/math]
  4. [math]+2[/math]
Grade 12 Oxidation-Reduction Reactions
The oxidation number of H in [math]AlH_3[/math] is
  1. [math]+1[/math]
  2. [math]-1[/math]
  3. [math]+3[/math]
  4. [math]0[/math]
Grade 12 Oxidation-Reduction Reactions
The oxidation number of P is +3 in which of the following compounds?
  1. [math]H_3PO_2[/math]
  2. [math]H_3PO_3[/math]
  3. [math]H_3PO_4[/math]
  4. [math]H_4P_2O_7[/math]
Grade 12 Oxidation-Reduction Reactions
What is the oxidation state of Oxygen (O) in [math]OF_2[/math]?
  1. [math]+4[/math]
  2. [math]+2[/math]
  3. [math]-1[/math]
  4. [math]-2[/math]
Grade 12 Oxidation-Reduction Reactions
The sum of oxidation states of all atoms in [math]ClO_4^[-1][/math] ion is
  1. 0
  2. [math]-4[/math]
  3. [math]-1[/math]
  4. [math]+2[/math]
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