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

What is the correct order of λmax for n –> π* transition for the

1.	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
Answer» B. R-CN = R-NO2 = R-N=N-R

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

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