2.2 The rules of aromaticity states that the molecule must obey Huckel's rule and must be...
Question 2 (1 point) Select all TRUE statements about the molecule below: A) This molecule obeys Huckel's Rule (4n+2 electrons) B) This molecule is anti-aromatic C) This molecule has a conjugated pi-system D) This molecule is aromatic Question 3 (1 point) ✓ Saved Select all TRUE statements about the molecule below: A) This molecule does not obey Huckel's Rule. B) This molecule obeys Huckel's Rule (4n+2 electrons)
Respond to the following discussion questions: 1. Do all molecules obey the octet rule? If No, give at least three examples of molecules that are exceptions to the octet rule and explain in detail why they do not obey the octet rule. 2.What is the difference between electron-domain geometry and molecular geometry of a molecule? Give examples. 3. Discuss how"Bond dipoles" in molecules can be used to determine polarity in molecules (Note: Clear illustration MUST be used to explain this).
3.1 Apply the aromaticity rules to determine whether the following compounds are aromatic or not. А B (6) 3.2 Draw an orbital representation of pyrrole to show how the molecule is aromatic (5) 3.3 Consider the reaction of benzene with 1-chloropropane in the presence of AlCl3. (0) Propose a mechanism for formation of 1-methylethylbenzene as the product 10) Explain why 1-propylbenzene is not formed. (7)
Question 4 (2+1+1+4+2 = 10 marks) a) Draw the chemical structure of 2,6-dibromo-3,4-dimethylphenol. (2 marks) b) Will this molecule be a stronger or weaker acid than ethanol? (1 mark) c) How many unique signals would be observed in the mark) C NMR spectra of this molecule? (1 d) Using Huckel's rules, determine whether the following molecules are aromatic or not. How many pi electrons do each of these molecules contain? (4 marks) e) Draw the product of the following reaction....
Question 10 Which of the following statements is FALSE? Resonance forms must obey normal valency rules. Resonance is a fast equilibrium between two species. Resonance forms represent the extremes of something that really exists in between. Resonance forms differ in their arrangement of electrons only. Question 9 What is the formal charge of the nitrogen in the molecule shown below? N-H O-1 O-2 O +1 Question 8 2 pts Consider the following acid base reaction: OH CH,00 CH3OH pka =...
Consider the following molecules A-o to answer questions 1-11: Molecule A Molecule B Molecule c Molecule D Molecule E Molecule F ОН Molecule G Molecule H Molecule I Molecule J Molecule K Molecule L Molecule M Molecule N Molecule o 2. (1 mark) Please give the IUPAC systematic name for molecule E. NOTE: Please use only lowercase letters. You must use the correct spelling and syntax in order to be marked correct. No part marks will be awarded Submit Answer:...
Which of the following does not obey the octet (or duet) rule? A. CH2O B. CCl4 C. SiF4 D. XeF4 E. HCCH (where the carbons are bonded to each other)
99 Write Lewis structures that obey the octet rule for the follow- ing species. Assign the formal charge for each central atom. a. POCI b. SO c. CIO4 d. PO3 es e. SO2C12 f. XeO4 n g. CIO3 h. NO3-
10. Which of the following does not obey the octet rule? a) PCI b) H0 c) NH, d) CCI, 11. Which one of the following is the most polar a) H-F b) H-CI c) H- Br d) H-
25 Which of the following contains an atom that does NOT obey the octet rule? out of Select one: O A. ICI B. LiF C. CIF3 D. SiO2 E. N2 What is the charge of the "S" ion in the compound Al2S3? Select one: a. -1 b.-2 C. 72 d. -3 e. O