Question

Which of the following compounds will show metamerism?

• A. $ C{{H}_{3}}-CO-{{C}_{2}}{{H}_{5}} $
• B. $ {{C}_{2}}{{H}_{5}}-S-{{C}_{2}}{{H}_{5}} $
• C. $ C{{H}_{3}}-O-C{{H}_{3}} $
• D. $ C{{H}_{3}}-O-{{C}_{2}}{{H}_{5}} $

Answer 1

Answer: (B)

Compounds having bivalent functional group (like
etc) with atleast 4 carbon atoms (in case of ether and thioether) or atleast 5 carbon atoms (in case of ketones) exhibit metamerism. Hence, $ {{C}_{2}}{{H}_{5}}-S-{{C}_{2}}{{H}_{5}} $ will show metamerism.