Redox Reactions and Oxidation States Quiz

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Which type of chemical reaction involves a change in the oxidation states of a substrate?

Acid-base reaction

Precipitation reaction

Redox reaction (correct)

Combustion reaction

What is oxidation in a redox reaction?

The decrease in the oxidation state

The increase in the oxidation state (correct)

The gain of electrons

The loss of electrons

What is reduction in a redox reaction?

The increase in the oxidation state

The loss of electrons

The decrease in the oxidation state

The gain of electrons (correct)

Which class of redox reactions involves electron transfer?

Atom transfer reactions Signup and view all the answers

What happens to the oxidation state of iron atoms in the rusting of iron?

It increases Signup and view all the answers

What is redox?

Redox is a type of chemical reaction in which the oxidation states of a substrate change. Signup and view all the answers

What is oxidation?

Oxidation is the loss of electrons or an increase in the oxidation state. Signup and view all the answers

What is reduction?

Reduction is the gain of electrons or a decrease in the oxidation state. Signup and view all the answers

What are the two classes of redox reactions?

The two classes of redox reactions are electron-transfer and atom transfer. Signup and view all the answers

Give an example of an atom transfer redox reaction.

An example of an atom transfer redox reaction is the rusting of iron, where the oxidation state of iron atoms increases as the iron converts to an oxide, and the oxidation state of oxygen decreases as it accepts electrons released by the iron. Signup and view all the answers