1- Which of the following comparison is correct for solvent shift on the n –>π* transition of acetone?
a) H20 = CH30H = C2H50H = CHC13 = C6H14
b) H20 > CH30H > C2H50H > CHC13 > C6H14
c) H20 < CH30H < C2H50H < CHC13 < C6H14

d) H20 > CH30H < C2H50H < CHC13 < C6H14

2- Which of the following is an application of molecular spectroscopy?
a) Structural investigation
b) Basis of understanding of colors
c) Study of energetically excited reaction products
d) All of the mentioned

3- The transition zone for Raman spectra is __?
a) Between vibrational and rotational levels
b) Between electronic levels
c) Between magnetic levels of nuclei
d) Between magnetic levels of unpaired electrons

4- The electronic spectra in the visible range span is __?
a) 25000-72000 cm-1
b) 12500-25000 cm-1
c) 25000-50000 cm-1
d) 15000-30000 cm-1

5- What is the correct order of λmax for n –> π* transition for the R-CN, R-NO2, and R-N=N-R?
a) R-CN = R-NO2 = R-N=N-R
b) R-CN < R-NO2 < R-N=N-R

c) R-CN > R-NO2 > R-N=N-R
d) R-CN > R-NO2 < R-N=N-R

6- What is the correct order of λmax for n–> π* transition for the following three compounds?
a) RCOOH > RCOOR’ > RCONH2
b) RCOOH = RCOOR’ = RCONH2
c) RCOOH = RCOOR’ > RCONH2
d) RCOOH = RCOOR’ < RCONH2

7- Arrange the various electronic transitions in the order of increasing energy.?
a) n→σ* < π→π* < n→π* < σ→σ*
b) n→σ* < n→π* < π→π* < σ→σ*
c) n→π* < π→π* < n→σ* < σ→σ*
d) σ→σ* < π→π* < n→π* < n→σ*

8- What is the position of the band of alkanes?
a) 190 nm
b) 187 nm
c) 198 nm
d) 150 nm

9- Which of the region of IR spectra appears between (1400-600) cm-1?
a) Fingerprint region
b) Functional group region
c) Low-frequency region
d) None of these

10- Which of the following cannot show a vibrational absorption spectrum?
a) OCS
b) H2O
c) CO2
d) C H2 = C H2

11- The smallest continent is?
a) Europe
b) Australia
c) Antarctica
d) None of these

12- the largest Ocean is?
a) Pacific
b) Atlantic
c) Indian
d) None of these

13- Namib Desert is in?
a) South America
b) North America
c) Africa
d) Australia

14- White Desert is located in?
a) Oman
b) Algeria
c) Egypt
d) Portugal

15- How many countries are in Australia continent?
a) 12
b) 14
c) 15
d) 16