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1) Identify nonalternant hydrocarbon(s):

a) b)
c) d)
e) f)
g) h)
i) j) a, c,e
k) none
l) all m) f, h and i

2) Place differenet types of electronic transitions in order of their typical strength (extinction coefficients):

a) s -s* > p-p* > n -p* > n -s*
b) p-p* > n -p* > n -s* > s -s*
c) p-p* > n -p* > s -s* > n -s*
d) s -s* ~ p-p* > n -s* ~ n -p*

3) Which vibronic transition is allowed by symmetry in benzene:

a) A¹B_2u - X¹A_1g 1²₀6²₀
b) A¹B_2u - X¹A_1g 1⁶₀6¹₀
c) A¹B_2u - X¹A_1g 1¹₀6¹₀
d) A¹B_2u - X¹A_1g 1¹₀6²₀
e) all of them
f) none
g) b and c

4) Franck - Condon factor :

a) is always less than 1
b) describes the overlap between the vibrational functions of different electronic states
c) describes the overlap between the vibrational functions of the same electronic state
d) a and b
e) b and c
f) a and c
g) a, b, and c

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