Why the extended Pi(π) conjugated are suitable for Fluorescence properties? Answer should be specific(3-4 lines).

Which of the following Fischer projections represents the wedge-and-dash structure shown below? HO A) I OH CH3 II CH2CH3 B) II НО HO- ČO2H C) II %3D CH3 IV ÇO2H D) IV H- -HO- НО- -H- CO2H ČH3

For the molecule in attached image, label every stereocenter properly as R,S,E or Z

Give detailed Solution with explanation needed..don't give Handwritten answer

Drawing.   a diels-Alder cycloaddition was carried out between meic anhydride and 1,3-butadiene and this product was hydrolized to form......(draw the answer)

At pH 1. Select Draw / ||| ||| 3 Rings C More H N O 7 N H Erase Q2 Q At pH 7. Select Draw Rings C More HN O O N + H Erase Q2Q

Answer the following, please provide readable and well explained answers.   -Do H-H have IR absorbance peak ? If , at what wavenumber region ? -Do CH2=CH2 have IR absorbance peak ? If, at what wavenumber region ? -Do CH3CH=CH2 have IR absorbance peak ? If, at what wavenumber region ? -Do (CH3)2C=C(CH3)2 have IR absorbance peak ? If, at what wavenumber region ?

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