Which of the following pairs are resonance structures? a) and b) :N-NEN: and :N=N= N: 2- C. and d) and e) CH, CHz CH=CHz CHz CH=CH CH3 and CH3 CH3 a CH, CH CH2 CH2 CHa cHz CHz CH CHz CHq and and CHz C=CHz
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- Which of the following is a resonance structure of the compound below? 0=0 H CH₂CH3 || III ON H₂C H₂C 11 Нас-с CHOH CH3 HẠCHO CH E ||| :0 HC CH3 IVSpecify the formal charges on the atoms labeled a-c in each structure. b a:0: CH3CH2, CH2CH3 b H3CN-CH3 CH;CH2 CH2CH3 ČH3 a a b bDetermine the relationship between Structure A and Structure B in each row of the table. H -O: H H Structure A :0: H H :O: H H H H H :S-C=N: H H H H Structure B :0: :0: H H H H H J ·0 :N=C—S H H H H H H isomers resonance structures neither isomers resonance structures neither Relationship isomers resonance structures neither ? olo Ar
- Which of the following pairs depicts resonance structures? :0-H A) and NH2 H2N NH .. CH3 CH3 B) and ; CH3 CH3 H;C H3C C) and D) andSpecify the formal charge at each of the labeled atoms, a - c, in each of the following structures. (a) H (b) a Н а. Н н а. C Н b с C=C: Ь. b :0: a b. ОН нн нн с. н H5) The compound methylamine, CH;NH2, contains a C-N bond. In this bond, which of the following best describes the charge on the carbon atom? A) +1 B) slightly positive C) neutral D) slightly negative E) -1 6) The formal charge on the nitrogen on the structure shown below is: онн o C-N-H нн A) 0 B) -1 C) +1 D) -2 E) +2
- Which of the following pairs are feasible resonance structures? I. CH₂=CHCH₂ and II. III. IV. V. III IV CH₂=CH :OH CH3-C-H :0: CH3-C-H and and and CH,−O−CH, and CH3-C- || :Ö: CH₂-C-H CH3-C-H CH₂CH₂OH -H'N: H Z-I H3O+ H₂O%71 KBs 10 i forms.office.com/Pages/R 14 Which of the following pairs are NOT * ?resonance structures )2 نقطة( A) CH3-0-N-O: and CH3-0-N-O: B) and :0-C-O: C) :0: CH3-0-N-O: and CH3-N :0: D) Each of these pairs represents resonance structures. E) None of these pairs represents resonance structures. А C D 15 B.
- Which set shows the correct resonance structures for SeO2? O O O - :: O SeO2 does not have a resonance structure. O = Se 0:0 - Se = = 0: = Se - 0:0 :: Se = : 0: 0-Se-00 = Se = 0 :0 = Se= 0: O= Se- 0 :: 0 -Se= 0:For each example, specify whether the two structures are resonance contributors to the same resonance hybrid. CH2 HC a) HC=CH2 HC-CH2 HC-CH2 ö: ö: b) H3C- H3C- NH2 NH2 c) H3C-NH-CH2 H3C-NH=CH2For each example, specify whether the two structures are resonance contributors to the same resonance hybrid. а) H2C-NH2 H2C=NH2 H,C=CH-Öit-CH, b) H2C-CH=CH-CH3 :ö: c) + H2C=CH-C–H H2C-CH=Ć-H :ö: