Assign the values of lambda_max (524 nm, 258 nm, 217 nm, 165 nm) in UV/V is spec

Question

Assign the values of lambda_max (524 nm, 258 nm, 217 nm, 165 nm) in UV/V is spectra to the following organic molecules A. 1 - 258 nm, 2 - 165 nm, 3 - 217 nm, 4 - 524 nm B. 1 - 217 nm, 2 - 165 nm, 3 - 258 nm, 4 - 524 nm C. 1 - 524 nm, 2 - 165 nm, 3 - 217 nm, 4 - 258 nm D. 1 - 258 nm, 2 - 217 nm, 3 - 165 nm, 4 - 524 nm E. 1 - 217 nm, 2 - 524 nm, 3 - 258 nm, 4 - 165 nm A natural line-width of a typical rotational state is 10^-4 Hz. Estimate the lifetime of this state. A. 1.5 times 10^-5 s B. 1.6 s C. 1.0 times 10^4 s D. 1.6 times 10^3 s E. 1.0 times 10^-4 s

Explanation / Answer

As the conjugation increases,the absorption maximum value is shifted towards higher wave length.

So, the absorption maximum is increased in the order,

4 < 1 < 3 < 2

So, the answer is,

(E)

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