Which of the following species are conjugated? Which structure represents the s-cis conformation of (3E,52-nona-3,5-diene? O...
22. Which of the following compounds is(are) conjugated diene(s)? II III IV a. ll only b. I and III c. I and IV d. II, Ill, and IV 23. Vitamin D, has the following structure. Classify the circled pi-bond in vitamin D, as conjugated, cumulated or isolated a. Conjugated b. Cumulated c. Isolate 24. What is the IUPAC name for the following compound? a. (22,42,6E)-3,4,7-trimethylocta-2,4,6-triene b. (2,4,6E)-2,5,6-trimethylocta-2,4,6-triene c. (25,4Z)-3,4,7-trimethylocta-2,4,6-triene d. (48,6E)-2,5,6-trimethylocta-2,4,6-triene
3) For which of the following alkenes will cis- and trans-isomers not exist? H₂C C H₂O CH₂ H₃C H₂C- CH₂ H₃C CH₃ H C F G H CH I a A) a only B) b only C) both a and c D) d only E) both c and d 4) Provide the proper IUPAC name for the alkene shown below. CH, CH CC H CHỊ CH(CH3 ) A) (E)-1,2-dimethyl-1-heptene B) (E)-3,5-dimethyl-2-hexene C) (Z)-1,2-dimethyl-1-heptene D) (2)-3,5-dimethyl-2-hexene E) none of the above...
Arrange the following species in increasing size: AI, A13+, S, and 52- 52- <AL<S<A13+ O A13+ < Al<5<52- S<A13+ < Al 52- 52-< Al<A13+ <S O Al3+ <S<AL<52- What is the average bond order for a Si–O bond in the ion SiO32-? O 1 2/3 o 3/2 02 4/3 0
Question 14 1.5 pts Arrange the following species in increasing size: Al, Al3+, S, and 52- O 52- <AL<S<A13+ A13+ < Al<S< 52- S<A13+ < AL<52- O 52-< Al<A13+ <5 O A13+ <5<AL<52- Question 15 1.5 pts What is the average bond order for a Si–O bond in the ion SiO32- ? 1 2/3 O 3/2 O2 O 4/3
QuestiorT Which of the following represents conductive polymers, which are conjugated polymers that can potentially be used to synthesize futuristic transparent and curved displays like those seen in the movies Minority Report and Iron Man? Your answer it trt O b. CI O c C. O d. 0
1.5 pts Question 14 Arrange the following species in increasing size: AI, A13+, S, and 52- 52- <Al<5<A13+ A13+ < Al< 5 < 52 S<A13+ < AL<52 52. < Al < A13+<5 A13+ <S<Al<52- 1.5 pts Question 15 What is the average bond order for a Si–O bond in the ion SiO32-? 2/3 3/2 2 4/3
1. The most stable conformation of trans-3-ethyl-1-iodocyclohexane is a. Et b. C. d Et Et 2. a 3. Which of the following is NOT a resonance structure of ozone? b. a. d. All are valid resonance structures C. 4. Arrange the following bicyclic alkenes in order of increasing stability (least stable to most stable) II II d. Il<lll< C. I<ll<llI b. I<lll<ll a. Ill<ll< 5 What is the correct Lewis structure for CHsNCO? b. No 0 НС H,C- a. d....
Choose the most stable conformation of the major product of the following reaction. Question 1 soc ? pyridine OH F Enter Your Answer: OC O D OE OF OA Select the order that has the following anions correctly arranged with respect to increasing stability. Question 2 2 3 AJ ng Enter Your Answer: OA OB Oc OD OE OF Select the synthetic pathway(s) that would form 3-methyl- 4-nonyne as the major product Question 3 3methyl4nonyne Na NaH Na D.1& I...
out Services will not be valable until you sign in again Question 13 4 pts Rank the following cations in order of increasing stability, A B c D E OD<B<C<A<E OC D«E<B O C<D<A<E<B OB<E<A<D<C OCD<B<A E 4 pts Question 14 What is the major product of the following reaction? 1. BHTHE ? 2. NaOH, H901
Question 3.21 (C= grey,H=white,O=red,Cl= green,Br=reddish-brown)Which of the Newman structures below represents this conformation of 2-butanol, as viewed along the C2-C3 bond? Et = an ethyl group)Enter the letter(s) of the correct structure(s), in alphabetical order and without punctuation; more than one answer may be correct.