CO2 is named:
ACarbon trioxide
BCarbon dioxide
CCarbon monoxide
DCarbon disulfide
Answer & Solution
Correct answer: B. Carbon dioxide
1. The prefix shows how many atoms of the second element there are.
2. Two oxygen atoms take the prefix di.
3. So CO2 is named carbon dioxide.
4. The answer is carbon dioxide.
_Source: NCERT Class 9 Science, Ch 9 'Atomic Foundations of Matter'_
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