1.

What is the correct order of λmax for π –> π* transition for the following three compounds?$

A. R-C<span style="text-decoration:overline;">=</span>C-R > R<sub>2</sub>C = CR<sub>2</sub> > R-CHO
B. R-C<span style="text-decoration:overline;">=</span>C-R < R<sub>2</sub>C = CR<sub>2</sub> < R-CHO
C. R-C<span style="text-decoration:overline;">=</span>C-R = R<sub>2</sub>C = CR<sub>2</sub> = R-CHO
D. R-C<span style="text-decoration:overline;">=</span>C-R < R<sub>2</sub>C = CR<sub>2</sub> >R-CHO
Answer» C. R-C<span style="text-decoration:overline;">=</span>C-R = R<sub>2</sub>C = CR<sub>2</sub> = R-CHO


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