Chemistry
Grade-6
Easy
Question
When carbon and oxygen combine, they form which compound?
- CO2
- CaCO3
- CO3
- Both A and C
Hint:
Any element when combined with oxygen it forms its oxide.
The correct answer is: Both A and C
- Any element when combined with oxygen it forms its oxide.
- When carbon and oxygen combine it forms two oxides carbon monoxide and carbon dioxide.
- Whether carbon dioxide or monoxide is formed depends on the weight ratio they combine.
- When a compound is formed its charges should be balanced. Hence, CO3 cannot be formed as the oxidation states are not balanced.
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