I- seems to be strongest nucleophile as size of iodine is greater as well as I- have negative charge.
Option (b).
Identify the strongest nucleophile. a. HO- b. I c. NaOCH2CH3 d. CH3CH2OCH2CH3
The strongest nucleophile is : a) fluorine anion b) chlorine anion c) bromine anion d) iodine anion
identify the strongest base. A) NH3 B) HCOO- C) CH3- D) OH-
Rank the following organic acids from strongest(1) to weakest (5). НО HO OH С. В. А. Но F HO HO Е. D. NO2 I. A Strongest acid(1) II. С 2. III. B 3. 4. IV. D
of the following anions, which is the strongest base? A) I- B) CN- C) NO3- D) Br-
4. In each case below identify: (a) the leaving group (b) the nucleophile, (c) and if the reaction is an Syl reaction or Sn2 reaction. (d) Draw the products of the following substitution reactions. NaSH DMSO MeOH H- Br NaCN DMF
4. In each case below identify: (a) the leaving group (b) the nucleophile, (c) and if the reaction is an Snl reaction or Sn2 reaction. (d) Draw the products of the following substitution reactions. NaSH DMSO MeOH H- Br NaCN DMF
5. Which is a protic solvent? A) CCIA B) HCC13 C) CH3(CH2)4CH3 D) CH3CH2OCH2CH3 E) CH3CH2OH
1. Which of the following takes place faster by an S2 reaction! 2. Rank from strongest nucleophile to weakest nucleophile. A HO B. HO C. HN D. H 3. Which of the following SN2 reactions is fastest? , (o) (a) H3C-CECH Na NaH CHBr (SN2) сH,Br (b) Naci (S2) 4. Which of the following takes place faster by an E2 mechanism? ONa 5. Which is the best leaving group? A. F" B. CI C. HO D. Br E. H
Arrange the following species in order of increasing nucleophile strength in an SN2 reaction. H: CH3NHCH3OH a. (Weakest nucleophile) H:1- < CH3OH < CH3NH- (Strongest Nucleophile) C b. (Weakest nucleophile) CH3NH1- < CH3OH < H:1- (Strongest Nucleophile) (Weakest nucleophile) CH3OH <H:1- < CH3NHL- (Strongest Nucleophile) d. (Weakest nucleophile) CH3NH1 <H:1- < CH3OH (Strongest Nucleophile) e. (Weakest nucleophile) H:1- < CH3NH1- < CH3OH (Strongest Nucleophile) (Weakest nucleophile) CH3OH < CH3NH2- < H:1- (Strongest Nucleophile) f.
Order Strongest to weakest Bronsted-Lowry Acid? a) H-NO2, b) H-ON, c) H-ONO d) H-NO Order Strongest to weakest Bronsted-Lowry Base? a) I- b)Cl- c) F- d) Br- Order Strongest to weakest Bronsted-Lowry Acid? a) CH4, b) H2O, c) SiH4 d) H2S e) NH4 f) PH3 What is the Lewis base? a) CH4, b) H2O, c) SiH4 d) H2S e) NH4 f) PH3