a
decomposed
b
displaced
c
oxidized
d
reduced
Explanation
Correct Option
dVideo Explanation
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stilinski124
10 years ago
Oxidation and reduction in terms of oxygen
transfer
Definitions
Oxidation is gain of oxygen.
Reduction is loss of oxygen.

KnightsOfNor
3 years ago
ZnO + CO ––> Zn + CO2
1. Every Free Element=0
2. Every Compound without an Ion=0
Now for ZnO, notice that O= –2 so Zn= 2+ to make the Compound equal 0
Then for Zn=0 (ref to 1.)
If you dont know what this means, use your number line.
Zn went from +2 to 0 so using your number line, it went to the left hand side (Reduction)
This is explanation in vivid but professional way. Hope it helps!

