Which of the following is a Lewis Base?
a. BBr3
b. CCl4
c. :NH2CH2CH3
d. CHBr3
Lewis base are electron donor.
So, there should be lone pair or negative charge on the compound
that can be donated for it to act as Lewis base.
Of all the given options, NH2CH2CH3 has lone pair one N.
So, NH2CH2CH3 can act as Lewis base
Answer: c
Which of the following is a Lewis Base? a. BBr3 b. CCl4 c. :NH2CH2CH3 d. CHBr3
Which one's a reaction of a Lewis Base with a Lewis Acid? A hago B C D
Which of the following Lewis structures woul d be an expansion to the octet rule? A) PH3 B) PCl3 C) CCl4 D) CO2 E) SO3
Which of the following has primarily ionic bonding? a) N2O3 b) Na2O c) CO2 d)CCl4 e) none.
12. Which is the major product of the reaction shown? (a) (b) (c) (d) 13. What are all of the possible products formed in the following reaction? (choose all correct answers) (a) (b) (c) (d) (e) (f) 14. The three compounds below can form a carbocation in the presence of H2O and H2SO4. Which ones will form the same carbocation? (a) I and II (b) I and III (c) II and III (d) all three will form the same carbocation...
a = proton transfer b = Lewis acid base c = Electrophilic addition d = E1 Elimination e = E2 Elimination f = S_N 1 Nucleophilic substitution g = S_N 2 Nucleophilic substitution The reaction above involve synthesis of reaction of alcohol and. Identify the mechanism by which they proceed from among the mechanism listed. Use the letters a-g for your answers. 1. 2.
Which species requires the drawing of resonance structures? a. SO2 b. CCl4 c. NF3 d. CH2O
#5 Lewis Acid and Lewis Base 1. For each of the following reactions, draw the Lewis dot structure for each reactant and product. Identify each reactant as a Lewis acid or a Lewis base. a. CH3CH2CH2CH2CH2OH + CF3COOH – CH3CH2CH2CH2CH2OH2* + CF3COO- b. CH3CH2CH2CH2Br + CH30 CH3CH2CH2CH2OCH3 + Br (the O is between the last 2 C) C. CH3CHCICH2CH3 + NH2 CH3CHCHCH3 + NH3 + Cl- (for this problem only consider the new bond between N and H) d. BF3...
Which of the following is an Arrhenius base? a Bronsted-Lowry base? a Lewis u**e? It is possible for a base to be of more than one type. Arrhenius base: NH_3 Br^- NaOH Bronsted base: NH_3 Br^- NaOH Lewis base: NH_3 Br^- NaOH
plwase explain the answer 13. Which of the following is a Lewis acid-base reaction? a. CH3Br + CH3Cl → CH3Cl + HBr b. •CH3 + HCl →CH3CI C. NaCl + AgNO3 → AgCl + NaNO3 d. Cl2 + PCl3 → PCOS e. None of them are Lewis acid-base reaction 12. Given the following information for the acids, HF (K = 6.76 x 10“), HNO, (K =4.6 x 10), and HCN (K = 4.79 x 10-19), arrange in the order of...
a = Proton transfer b = Lewis acid/base c = E2 elimination d = S_N 2 Nucleophile substitution e = Electrophilic aromatic substitution f = Carbonyl nucleophilie addin g = nucleophilic subs at carbonyl(acyl Xfer) h = Conjugate (nucleophilic) addn Identity the mechanism by which each of the reactions above proceeds from among the mechanisms listed Use the letters a - i for your answers