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WorksheetsOxidation and Agents question with out answer
Total questions: 15
Worksheet time: 8mins
What is an oxidizing agent?
A substance that loses electrons during a reaction.
A catalyst that speeds up oxidation without being consumed.
A compound that only reacts with acids.
An oxidizing agent is a substance that promotes oxidation by gaining electrons.
Name one common oxidizing agent used in laboratories.
Potassium permanganate
Acetic acid
Hydrochloric acid
Sodium chloride
What is the oxidation state of oxygen in most compounds?
+1
-1
0
-2
How do you determine the oxidation state of an element in a compound?
Oxidation states can only be determined through experimental data.
The oxidation state is always zero in compounds.
The oxidation state is the same as the atomic number of the element.
The oxidation state of an element in a compound is determined by applying oxidation state rules and ensuring the sum equals the compound's charge.
What is the oxidation state of hydrogen in most compounds?
+2
-1
+1
0
Identify the oxidation state of sulfur in H2SO4.
0
+2
+4
+6
What happens to the oxidation state of an element when it acts as an oxidizing agent?
The oxidation state of the element decreases.
The oxidation state of the element fluctuates randomly.
The oxidation state of the element remains the same.
The oxidation state of the element increases.
List two examples of strong oxidizing agents.
Calcium carbonate
Potassium permanganate, Hydrogen peroxide
Sodium chloride
Ammonium sulfate
What is the oxidation state of chlorine in NaCl?
+1
-2
-1
0
How does the oxidation state of an element change during a redox reaction?
The oxidation state remains constant during a redox reaction.
The oxidation state is irrelevant in redox reactions.
The oxidation state of an element increases when it loses electrons and decreases when it gains electrons.
The oxidation state decreases when it loses electrons and increases when it gains electrons.
What is a redox reaction?
A redox reaction is a type of reaction that does not involve any electron transfer.
A redox reaction is a process that only involves the formation of new compounds.
A redox reaction is a reaction where two substances combine without changing their oxidation states.
A redox reaction is a chemical reaction involving the transfer of electrons, where one substance is oxidized and another is reduced.
In a redox reaction, what does the term 'reduction' refer to?
Reduction means the increase in oxidation state.
Reduction is the loss of electrons.
Reduction involves the release of protons.
Reduction is the gain of electrons.
What is the oxidation state of carbon in CO2?
0
+4
-4
+2
How can you identify the oxidizing agent in a chemical reaction?
The oxidizing agent is the substance that loses electrons.
The oxidizing agent is the substance that is reduced and gains electrons.
The oxidizing agent is the substance that remains unchanged.
The oxidizing agent is always a metal in the reaction.
What is the oxidation state of nitrogen in NH3?
-1
+3
-3
+1
