Question

The general formula of carbonyl compound is:

• A. \( \text{C}_n\text{H}_2\text{n} \)O
• B. \( \text{C}_n\text{H}_{2n+2}\text{O} \)
• C. \( \text{C}_n\text{H}_{2n+1}\text{O} \)
• D. None of these

Hint:

Aldehydes and ketones are carbonyl compounds with the general formula \( \text{C}_n\text{H}_{2n} \text{O} \).

Answer 1

The Correct Option is A

Step 1: Understand carbonyl compounds.
Carbonyl compounds include aldehydes and ketones, which have a carbonyl group (\( \text{C}= \text{O} \)) as their functional group. The general formula for aldehydes and ketones is \( \text{C}_n\text{H}_{2n} \text{O} \), where \( n \) is the number of carbon atoms.
Step 2: Eliminate the incorrect options.
- Option (A) \( \text{C}_n\text{H}_2\text{n} \)O: Correct, this is the general formula for carbonyl compounds like aldehydes and ketones. - Option (B) \( \text{C}_n\text{H}_{2n+2}\text{O} \): Incorrect, this is the general formula for alkanes, not carbonyl compounds. - Option (C) \( \text{C}_n\text{H}_{2n+1}\text{O} \): Incorrect, this formula doesn't represent carbonyl compounds. - Option (D) None of these: Incorrect, as option (A) is correct.
Final Answer: \[ \boxed{\text{C}_n\text{H}_{2n} \text{O}} \]