f) Et- a) H₂O b) NH2 LOCH3 e) :CEN: c) CH₂-0-H g) :1: d) BH4 k) H3C-C=O

List reasons why substitution is difficult on accomplish on the benzene ring?

Here is the same figure as in the previous two questions, but omitting the red circles. Cys157 Cys157 Cys157 His296 His296 His296 LOH HN HN HN N? -CO2 CH2 Asn329 Asn329 Asn329- Cys157 His296 LOH HN H HyC. Asn329 Which of the following roles is played by the imidazole side chain of His296? Pick the one best [ Select ] answer.

At which carbon in the molecule shown here will radical substitution predominantly take place? Explain.

refer to image, answer all parts and explain, will rate.

Please don't provide hand writtin solution....

In the synthesis of alkyne, the reaction involved is to undergo ________________.

Classify each of the red starred atoms in the figure below as either a nucleophile or an electrophile. (a) (b) (d) * a) electrophile b) nucleophile c) type your answer... d) type your answer... e) type your answer... f) type your answer... S S * HN (e) * NH₂ (f)

Is a carbon that is donating its proton a Bronsted acid and Lewis acid , does it also make it an electrophile . While it’s conjugate base will become a nucleophile ?

Please explain the answers, thank you