Question

41. Which pair of compounds could combine to produce an ester?

I. CH3- CH2 - CH2 - CH3


II. CH3- CH2 - CH2-CH2-OH


III. CH3- CH2 - CH2-COOH


IV. CH3- CH2- CH2- COH



a. I and II
b. II and III
c. II and IV
d. III and IV

Answer 1

Answer: b. ii and iii

Step-by-step explanation:

The ester, Butyl Butanoate is formed when Butanol reacts with Butanoic acid

as seen below;

CH3-CH2-CH2-CH2-OH + CH3-CH2-CH2-COOH ---->

Butanol Butanoic acid

CH3-CH2-CH2-COOCH2-CH2-CH2-CH3 + H2O

Butyl Butanoate Water