Question

please give correct answers to these 4 questions with explanations, thankyou

For the reaction below, predict the major product What makes a chemical species a nucleophile? Select one: a. A chemical species that can accept a proton from an electrophile to form a bond Br-Br b.A chemical species that can donate an electron pair to an electrophile to form a bond C.A chemical species that can donate a neutron to an electrophile to form a bond d. A chemical species that can accept an electron pair from an electrophile to form a bond e.A chemical species that can donate a proton to an electrophile to form a bond Select one: Н Consider the electrophilic reaction of H-Br to but-2-ene. Arrange the following events in order I. The bromide lon quickly attacks the cationic center I. The alkene abstracts a proton from the HBr II. The final product is formed, where H-Br has been added across the double bond а. IV. A carbocation and bromide ion are generated Br Br Select one a. III, IV, I, and I Br b. I, IV, I, and II C. II, II, I, IV Ob d. I, I, II, and IV e. Il,I, IV, and II Predict the correct product for the electrophilic addition reaction below Br + Н-CI Br Select one Н Br а. b. Br Н Н Cl С. Br Н d. Br е. CI

Answer 1

5 It Ans, b donates (nacoophile is having electron electrons to electrophile) pair. nucleophile) Ansab bromide ion attack on allene abstracts proton carbocatione Br generated carbocation 3 final product Ansia 4 0 + B - Dou additions (bromine a anti addition)