Given below are few chemical compounds.
2-Hexanone $(C_{6} H_{12} O)$ , 2-Butanone $(C_{4} H_{8} O)$ , 3-Hexanone $(C_{6} H_{12} O)$ , 3-Pentanone $(C_{5} H_{10} O)$
The functional group of ketones is ....................

-COOH

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-CH = O

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> C = O

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-OH

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Solution

The correct option is C > C = O
The functional group of ketones is $> C = O$ .
The general formula of ketones is $R - C | | O - R^{'}$ .
The structures of some ketones are as shown.
2-hexanone $C H_{3} - C | | O - C H_{2} - C H_{2} - C H_{2} C H_{3}$
2-butanone $C H_{3} - C | | O - C H_{2} - C H_{3}$
3-hexanone $C H_{3} - C H_{2} - C | | O - C H_{2} - C H_{2} C H_{3}$
3-pentanone $C H_{3} - C H_{2} - C | | O - C H_{2} - C H_{3}$

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