One of the following molecular formula can represent two organic compounds having different functional groups : This molecular formula is :
(a) $C_{5} H_{12} O$ (b) $C_{5} H_{10} O$ (c) $C_{5} H_{10} O_{2}$ (d) $C_{5} H_{12}$

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Solution

(c) $C_{5} H_{10} O_{2}$

$C_{5} H_{10} O_{2}$ represents two organic compounds ketones $(C_{2} H_{5} - O | | C - C_{2} H_{5})$ and aldehydes $(C_{2} H_{5} - C H_{2} - C H_{2} - C H O)$ which have different functional groups.

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One of the following molecular formulae represents a ketone. This formula is :
(a) $C_{5} H_{12} O$ (b) $C_{6} H_{12} O_{2}$ (c) $C_{6} H_{14} O$ (d) $C_{6} H_{12} O$

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One of the following molecular formula can represent two organic compounds having different functional groups : This molecular formula is : (a) C5H12O (b) C5H10O (c) C5H10O2 (d) C5H12

(c) C5H10O2 C5H10O2 represents two organic compounds ketones (C2H5−O||C−C2H5) and aldehydes (C2H5−CH2−CH2−CHO) which have different functional groups.

One of the following molecular formula can represent two organic compounds having different functional groups : This molecular formula is :
(a) $C_{5} H_{12} O$ (b) $C_{5} H_{10} O$ (c) $C_{5} H_{10} O_{2}$ (d) $C_{5} H_{12}$

(c) $C_{5} H_{10} O_{2}$

$C_{5} H_{10} O_{2}$ represents two organic compounds ketones $(C_{2} H_{5} - O | | C - C_{2} H_{5})$ and aldehydes $(C_{2} H_{5} - C H_{2} - C H_{2} - C H O)$ which have different functional groups.