Problem: For each of the following, give the letter for the best answer. (i) Which one of the following has the longest wavelength λmax in its UV-VIS absorption spectrum? (a) CH3CH2CH2CH2CH3, (b) H2C=CHCH2CH2CH3, (c) H2C=CHCH2CH=CH2, (d) H2C=CHCH=CHCH3 (ii)The ground-state configuration for the π electrons of benzene can be given as π 12, π22, π32, π4* 0, π5* 0, π6* 0. Which one of the following is an excited-state configuration for the π electrons of the benzene anion radical? (a) π12, π22, π32, π4* 1, π5* 0, π6* 0; (b) π12, π22, π32, π4* 0, π5* 1, π6* 0; (c) π12, π22, π31, π4* 2, π5* 0, π6* 0; (d) π12, π22, π31, π4* 0, π5* 0, π6* 0; (e) π12, π22, π30, π4* 1, π5* 0, π6* 0; (f) π12, π21, π32, π4* 0, π5* 0, π6* 0  

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For each of the following, give the letter for the best answer.

(i) Which one of the following has the longest wavelength λmax in its UV-VIS absorption spectrum?

(a) CH3CH2CH2CH2CH3,

(b) H2C=CHCH2CH2CH3,

(c) H2C=CHCH2CH=CH2,

(d) H2C=CHCH=CHCH3

(ii)The ground-state configuration for the π electrons of benzene can be given as π 12, π22, π32, π4* 0, π5* 0, π6* 0. Which one of the following is an excited-state configuration for the π electrons of the benzene anion radical?

(a) π12, π22, π32, π4* 1, π5* 0, π6* 0;

(b) π12, π22, π32, π4* 0, π5* 1, π6* 0;

(c) π12, π22, π31, π4* 2, π5* 0, π6* 0;

(d) π12, π22, π31, π4* 0, π5* 0, π6* 0;

(e) π12, π22, π30, π4* 1, π5* 0, π6* 0;

(f) π12, π21, π32, π4* 0, π5* 0, π6* 0

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Based on our data, we think this problem is relevant for Professor Ferro's class at FIU.