2. Which would you expect to be a better Lewis acid, Explain.
BCl3 or B(CH3)3?
BeCl2 or BCl3?
B(nBu)3 or B(tBu)3
BF3 or BCl3 or BBr3
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2. Which would you expect to be a better Lewis acid, Explain. BCl3 or B(CH3)3? BeCl2...
QUESTION 1 Which of the following species cannot act as a Lewis acid? 2. BF3 b. Ag* NH4 e. BeCl2
AlCl3 and BCl3 are strong Lewis acids. But, CaCl2 is not a Lewis acid. Explain why. (Hint: Write the reactions of these substances with H2O and explain.) Help, please, and thank you :)
Which of the following is a Lewis acid but not a Bronsted acid? A)AICI4- B)H3C-O-CH3 C)H3O+ D)BF3
a Equilibrium constants can be measured for the dissociation of Lewis acid-base complexes such as the dimethyl ether complex of BF3, (CH3)20-BF3. The value of K (here Kp) for the reaction is 0.17 at 125 °C. (CH3)20BF3 (8) # BF3 (8) + (CH3)2O(g) Is BF3 a Lewis acid or a Lewis base? Lewis acid Lewis base Correct b Is (CH3)20 a Lewis acid or a Lewis base? Wisited ewis acid Lewis base Correct c If you place 1.2 g of...
Which of the following species is a Lewis acid? Select one: a. Al3+ b. P(CH3)3 c. F- d. Cl2 e. NH3
Question 22 (2 points) Which substance is acting like a Lewis acid in the following reaction? BF3 (g) + Fl-(g) = BF41-(g) O BF4'- (g) This is not a Lewis acid/base reaction BF3(g) Fl-(g)
CH3 (4) 1. Which of the following alkyl halides would you expect to be most reactive in a unimolecular reaction? a) C&H, CH, CH, CH, BY b) CH 1 CH CH Br C) CH11CCH, Br d) C6H CH2 CH CHỊ CHỊ CH3 CHỊ e) C&H, CCH Br CHE (4) 2. What would you expect to be the chief organic product(s) when tert-butyl bromide reacts with sodium acetylide, i.e., CH3 + - CH2-C-Br + Na :CECH — ? CH a) I...
Question 8 2 pts Which of the following substances are Lewis acid? Select ALL that apply. BeCl2 Fe3+ OH NH3 BH3
() 1. Which of the following alkyl holides would you expect to be most reactive in a unimolecular reaction? CH3 a) CsM , CH, CH, CH, Br b) CEHCH CH BY c) CH, CCH, Br d) CH, CH2 CH CHE сн. он сня Br e) CHICCHE CH3 (4). 2. What would you expect to be the chief organic product(s) when tert-butyl bromide reacts with sodium acetylide, i.e.. CH + - CH3-C-Br + Na CECH ? CH a) 1 b) II...
12) Which diene would you expect to react most rapidly with maleic anhydride? CH3 CH3 CH3C CH3 CH3 CH3C IV a) I b) Ⅱ d) IV e)