In protic solvent, there is hydrogen attached to polar element
In I, there is hydrogen attached to N. So, this is protic solvent.
In II, there is hydrogen attached to O. So, this is protic solvent.
In III, there is no hydrogen attached to O. All the hydrogen are with carbon which are non ionisable. So, this is aprotic solvent.
In IV, there is hydrogen attached to O. So, this is protic solvent.
Answer: III
2.51 y Quuston U69 Which of the following is an aprotic solvent? NH2 7.6Z 7002 2006...
8. Which of the following is a polar aprotic solvent? OH CH₃ A. CH3CHCH; B. H- N C. CH2CH2CH2CH2CH3 CH; D. HOCH CH2CH2CH3 E. None of the choices are correct.
Oorai Which is the better leaving group in protic solvent? 1. Which is the better leaving group in aprotic solvent? I or Cl 2. Which is stronger base? I or Cl 3. Which is the stronger nucleophile in protic solvent? I or Cl 4. or CI Which is the stronger nucleophile in aprotic solvent? 5. Which is the stronger nucleophile? HO or H2N 6. 7. Which ion the better leaving group? CH,O or CH3CO2
Oorai Which is the better leaving...
42) Which of the following is an example of polar, aprotic solvent? a. hexane C. carbon tetrachloride b. acetone d. ethanol 43) Which of the following is the best leaving group? OH b. OCH d. H0
2. (a) For the following reaction, what solvent would favor SN2 (protic or aprotic)? Provide one example of the appropriate solvent. (b) Please explain why you chose your answer for (a). (CH3)3 + CH31 acetone CI oo. cHS Na DMSO + CHES Na DMSO V + oH Ethanoi NH2 + HOANH, CH31 acetone Өон OH (R)-3-bromo-3-methylhexane Previous Next Dashboard Calendar To Do Notifications
Question 15 Which of the following is not a condition for optimum SN 1 reaction? aprotic solvent weak base/ good leaving group carbocation protic solvent Question 16 Which of the following is not a condition for optimum S2 reaction? aprotic solvent strong base / good leaving group carbocation protic solvent
2. The following reaction will not work. Please explain why. cat. H-Br NH; solvent NH2 3. Use your knowledge of mechanisms to predict the product for each reaction: LiAlH4 → ????? LiAlH4 ????
Diethyl ether is a good solvent to be used with Grignard reagents. Which of the following explanations for this laat alle! It can serve as a Lewis base and stabilize the Grignard reagent. It has a very high boiling so it can be heated to drive the Grignard formation to completion. It is polar enough to stabilize the Grignard reagent. It is aprotic and thus is not acidic enough to react with the Grignard reagent.
Which of the following molecules possess both stereogenic
carbons and is a meso compound?
For the following molecule, which statement is correct
Which of the following will NOT increase the rate of an SN2
reaction?
6) Which of the following molecules possess both stereogenic carbons and is a meso compound? (I mark) CH3 Br Н- -ОН Н- -ОН Br Br Н. Br -OH НС Н CH2CH3 Molecule B Molecule D Molecule A Molecule C a) Molecule A b) Molecule B...
Which of the following is the correct structure for the molecule named (S)-1-cyclohexylpent-1-yn-3-amine? NH2 None of the answer choices provided are correct. 11111Z: NH2 ZHN
Which if the following favors the solubility of an ionic solid in a liquid solvent? A) A large magnitude of the solvation energy of the ions B) A small magnitude of the lattice energy of the solute C) A large polarity of the solvent D) All of the above E) None of the above