Redox Reactions Practice Quiz 1

A redox reaction is

• a neutralization reaction.

• all reactions.

• a reaction in which electrons are transferred from one element to another

• non of these are correct

Tags

NGSS.HS-PS1-2

Defined as the loss of electrons.

• oxidation

• reduction

• redox

• OIL RIG

Tags

NGSS.HS-PS1-2

NGSS.HS-PS1-1

Defined as the gain of electrons

• oxidation

• reduction

• redox

• OIL RIG

Tags

NGSS.HS-PS1-2

NGSS.HS-PS1-1

Oxidation number of any free element is always...

• 0

• 1

• 2

• 3

What happens to Cr³⁺ ion when it is converted to CrO₄^2–

• Oxidation number decreases and it undergoes reduction

• Oxidation number decreases and it undergoes oxidation

• Oxidation number increases and it undergoes reduction

• Oxidation number increases and it undergoes oxidation

Tags

NGSS.HS-PS1-2

An increase in oxidation number.

• oxdiation

• reduction

• redox

• OIL RIG

Tags

NGSS.HS-PS1-2

NGSS.HS-PS1-1

An decrease in oxidation number.

• oxdiation

• reduction

• redox

• OIL RIG

Tags

NGSS.HS-PS1-2

What is the oxidation number of Cl in Cl₂?

• -1

• +1

• cannot be determined

• 0

What is the oxidation number of C in SrCO₃?

• -4

• -6

• +2

• +4

What is the oxidation number of Cr in Cr₂O₇^2- ?

• +14

• -6

• -14

• +6

Tags

NGSS.HS-PS1-2