The amount of energy in electromagnetic radiation is related to the frequency and wavelength of the
radiation. High energy radiation like gamma rays is of:
a. low frequency and short wavelength
b. low frequency and long wavelength
c. high frequency and short wavelength
d. high frequency and long wavelength
Question 2n unknown compound is known to contain a single nitrogen atom. Its IR spectrum shows no peaks
between 3300 to 3500 cm1 or between 2110 to 2260 cm1. Which of the following is the structure of the
structure?
Question 3Which of the following IR bands would you not expect to find in caffeine?
a. 3400 cm1
b. 1710 cm1
c. 1650 cm1
d. 3 100 cm1
e. 2950 cm1
Question 4Which of the following molecules will have no IR bands at frequencies greater than 3000 cm1?
a. CH3COOH
b. CH2==CHCH3
c. CH3CH2OH
d. CH3CH2NH2
e. CH3OCH3