Three organic compounds A, B and C have the following molecular formulae: A) C 4 H 8 O 2 B) C 4 H 10 O C) C 4 H 8 O (a) Which compound contains an alcohol group? Write its name and structural formula. (b) Which compound contains a carboxyl group? Write its name and structural formula. (c) Which molecular formula can represent an aldehyde as well as a ketone? Write the names and structural formulae of the aldehyde and ketone represented by this molecular formula.

Three organic compounds A, B and C have the following molecular formulae:
A) C₄H₈O₂

B) C₄H₁₀O

C) C₄H₈O

(a) Which compound contains an alcohol group? Write its name and structural formula.

(b) Which compound contains a carboxyl group? Write its name and structural formula.

(c) Which molecular formula can represent an aldehyde as well as a ketone? Write the names and structural formulae of the aldehyde and ketone represented by this molecular formula.

(a) B; Butanol, C₄H₉OH

(b) A;Butanoic acid, C₃H₇COOH

(c) C; C₄H₈O Aldehyde: Butanal, C₃H₇CHO

Ketone: Butanone, CH₃COCH₂CH₃

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