REDOX REACTION

What is the oxidation number of H in H₂O?

• -1

• +1

• +2

• -2

What is the oxidation number for O₂

• -2

• -1

• 0

• +2

What is the oxidation state of Cu in Cu²⁺?

• -1

• -2

• +2

• 0

What is the oxidation state of phosphorous in Mg₃(PO₄)₂

• +2

• +3

• +4

• +5

Oxidation number of H in NaH:

• 0

• +1

• -1

• +2

Oxidation number of Fe in Fe₂O₃:

• 0

• -2

• +2

• +3

Oxidation number of O in the compound H₂O₂:

• 0

• -1

• -2

• +2

What is the oxidation number of N in NO₂^1- ?

• -3
• +4
• -2
• +3

What type of reaction is this: C₂H₂ becomes C₂H₆

• Reduction

• Oxidation

• Neither

• Combustion

What type of reaction is this: SF₄ becomes SF₆

• Hydrogenation

• Reduction

• Oxidation

• None of the above