Which of the following oxides is formed when potassium metal is burnt in excess air ?
A. `K_(2)O`
B. KO
C. `KO_(2)`
D. `K_(2)O_(2)`.
A. `K_(2)O`
B. KO
C. `KO_(2)`
D. `K_(2)O_(2)`.
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Correct Answer – D
Correct Answer – C
`KO_(2)` (super oxide) is formed.
Correct Answer – D
`K+O_(2) overset(“burning”)rarr KO_(2)`
Correct Answer – C
When potassium is burnt in excess of air, potassium superoxide is formed.
`K +O_(2) rarrKO_(2)`