Question

Bond Strength, Please help

10-082: Relative Bond Length or Strength Like several other bonds, carbon-oxygen bonds have lengths and strengths that depend on the bond order. Draw Lewis structures for the following species, and arrange them in order of increasing carbon-oxygen bond length. (Indicate the order with the numbers from the drop-down list, starting with 1 for the compound with the smallest bond length to 5 for the compound with the largest bond length.) 2 H2CO (5 7 CH₂O 3 HCO3 (H attached to o) 4 Co2 1 Co Bond length decreases as bond order increases. For species involving resonance structures, the bond order can be taken as the average over the different structures. So in C034, the average C-o bond order is 1.33. Submit Answer Incorrect. Tries 2/5 Previous Tries This discussion is closed. Send Feedback Book Pro

Answer 1

Anw! Now, lecsis Structures for the following Compounds - I (1) H₂CO te . Here the c=o'bondis : double bondedmatwee bandonders will be 22. (1) CHAO HEGH Bond Strength ts A HC-OH It is a methanol molecule, here a single . minimum. Proeselt sigma bond proesent bara hone hence its band. E) Heart oog onder mearly eseculis tol.00, ñ o ---o0 Here for bicarbonate ion, there are three resonating lewis structure possible. Among them to I and I resonating Stouctores are equivalent and majors. lewis bicarbonated qua quivalent and major. Resonance hybrid . 1 sto H 0 %3 The nature of 6-6 bonds are in between Single and double bond. N or o y go óga ç@ aq gec 8 1 8 Co o oº For Carbonate con three equivalent nesonating droueteses cre possible. Resonance heybrid : 1973 -43070-22 By Considering three canonical forms of compone de Can say that each c-o' bond is completely double bonded

Once and two times Completely Single bonded, hence. on an avenage co? in has a lie 33.33% double band characters in the Ĉó bands ... Between HCO3 and co-; as foro bicarbonate ion (H205 ) the third Canonical forom is not contributing in equal extent to like the Caronical form I and I (equivalen of mesnating structure) so, the thing and co-oh bond is majordy single bonded nature. This on an average here in HCO3 ian co has less double bonded characters. one co ; 2=8 triple bonded na twee valoce 25 2P Bondondem 23. fele Bond strength is maximum, cimeo 14 Fx11xxx og additional Cooper bond. Arranging thereasing cordens of c-o' bond length of the given compond as, COK hok coz <HOZ LAGO (Maximum bond strength (Minime in minimum band length , 'bond Stroangth, maxime on 1 bond length) electrons