77. Which of the following is NOT a characteristic of chromophores?
A. May contain extensive conjugated double bonds
B. Contains unsaturated functional group
C. Added to ions that do not strongly absorb light in the UV-visible region
D. Absorbs strongly at 800 nm
78. Which of the following is an application of molecular spectroscopy?
A. All of the given answers
B. Basis of understanding of colors
C. Structural investigation
D. Study of energetically excited reaction products
79. A compound with a formula of C7H14O exhibits an IR peak at 1715 cm-1.The compound maybe a/an
A. ketone
B. ether
C. ester
D. Alcohol