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6) Why are cis- and trans-stillbene visible on a TLC plate when viewed with short-wave ultraviolet light?

6) Why are cis- and trans-stillbene visible on a TLC plate when viewed with short-wave ultraviolet light?

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Question: 6) Why are cis- and trans-stillbene visible on a TLC plate when viewed with short-wave ultraviolet light? STILLBENES HAVE CONJUGATED DOUBLE BONDS, ABSORBS SHORTWAVE UV LIGHT AND EMIT VISIBLE LIGHT, SO WE CAN SEE SPOTS 7) WHAT WAS THE PURPOSE OF SODIUM HYDROXIDE? WHAT WOULD HAPPEN IF ITS OMMITED RXN PROCEEDS VIA ANION GENERATION. TO MAKE ANION PHOSPHATE NEED STRONG BASE. IF WE DON'T ADD IT RXN DOES NOT PROCEED.
Transcribed Image Text:Question: 6) Why are cis- and trans-stillbene visible on a TLC plate when viewed with short-wave ultraviolet light? STILLBENES HAVE CONJUGATED DOUBLE BONDS, ABSORBS SHORTWAVE UV LIGHT AND EMIT VISIBLE LIGHT, SO WE CAN SEE SPOTS 7) WHAT WAS THE PURPOSE OF SODIUM HYDROXIDE? WHAT WOULD HAPPEN IF ITS OMMITED RXN PROCEEDS VIA ANION GENERATION. TO MAKE ANION PHOSPHATE NEED STRONG BASE. IF WE DON'T ADD IT RXN DOES NOT PROCEED.
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