Question

10.Using curved arrows, show the flow of electrons for the below reaction lone pairs of electrons as needed. H + ** Homo H H-N + H-o-Nho omo + H-N-H + O-N- 11. Draw the skeletal (line-bond) form of CH3CHCICH2CH(CH3)2 and draw a constitutional isomer of this molecule that contains exactly one 4° carbon atom. 12. Draw the Lewis dot structure for nitric acid, HNO, Indicate the formal charge of each atom. 13. Draw the Lewis dot structure (expanded form) of all isomers of CsH100. Chapter Two 1. Ethane (C2He) is a weaker acid than ethene (C2H4) primarily due to: a. hybridization effects. b. inductive effects. c. resonance effects. d. element effects. 2. The pka of H2S is about 7.0. It can be determined that the pke of HS is: a. less than 7.0 b. greater than 7.0 c. equal to 7.0 d. possibly less than or greater than six, depending on the conditions.

Answer 1

10) XO: -I wie :0: 1H AIDO H-NYH+:04N407 H-N7 Ammonia act as a base as nitrogen has lone pair of electrons and abstracts the proton from HNO3 acid this results into NH4+ as a Anatonta the woonbarema mnogenichthiconec conjugate acid and NO3-as conjugate base. Constitutional isomer with one 4º carbon 11) line-bond formula: CI CH3 СН3eu. "3 CH₃ CH3 H2C CH2 H2C 2-chloro-4-methylpentane 3-chloro-2,2-dimethylbutane 4º carbon is the carbon with four groups attached to it. 12. Lewis dot structure of HNO3: 0 :: H ..0

13) There are more than 46 isomers of C5H100. Hence here I am considering only the Ketones and aldehyde! If are intrested in all isomers please let me know in the comment section. It may take some more time. H30: H:0: HH HCCCCC. H HC.C.C..C..CH HHHH нннн pentan-2-one pentan-3-one H 30: HHHH .... .... . н н н н реntаnаl Chapter two: 1) In ethene the carbon is sp2 hybridized and hence S-character is more as compared to sp3 carbon of ethane. This leads to closer electrons to nucleaus in the ethene carbon making is comparitively more stable carbanion after abstraction of proton. Thus this leads to more acidic nature. Answer is option a) hybridization effect. 2) In a diprotic acid first pka is always less than the second. Hence pka of HS-is greater than 7.0. Thus answer is option b) greater than 7.0.