Redox Reaction

Poll

Another name for a "oxidation-reduction" reaction is

• chemical reaction
• redox reaction
• nuclear reaction

Poll

Oxidation is the _________ of electrons.

• loss

• gain

• sharing

Poll

Reduction is the ___________ of electrons.

• loss

• gain

• sharing

Multiple Choice

Substance that oxidizes another substance by accepting its electrons. ( the one has redaction process )

• reducing agent

• oxidation number

• oxidizing agent

Multiple Choice

Substance that reduces another substance by losing electrons. ( the one has oxidation process )

• reducing agent

• electronegative atom

• oxidizing agent

Word Cloud

identify what happen to oxidation number during oxidation & reduction ?

Multiple Choice

A decrease in oxidation number is reduction

• true

• false

Poll

As an element is oxidized, its oxidation number...

• decreases as electrons are lost

• increases as electrons are lost

Multiple Choice

Oxidation is the _________ of electrons.

• loss

• gain

• sharing

• transfer

Multiple Choice

challenge question

Al (s) + FeSO₄ (aq) → Al₂(SO₄)₃ (aq) + Fe (s)

Which statements are true about this reaction?

I. Al (s) reduces Fe²⁺ (aq)

II. Al (s) is the oxidizing agent.

III. FeSO₄ is the reducing agent.

• I and II only

• I and III only

• II and III only

• I, II and III

Multiple Choice

What is the oxidizing agent in the following reaction?

Zn (s) + Cu²⁺ (aq) → Zn²⁺ (aq) + Cu (s)

• Zn (s)

• Cu²⁺ (aq)

• Zn²⁺ (aq)

• Cu (s)

Poll

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