Question

Identify the number of stereoisomers expected for each of the following: Meteorol boomoo woll n

Answer 1

Steuoisomeus- Also called as sha tial isomeuism, is a torm ot isomeuusm in which molecules have the Samu Moleculau tormula and Sequence of bonded atoms , bul ditteuen in dimensional shruatuse Orientations of their atoms the three in spaca Slevioisomeus Tybes of Two types ot Stewoisomeus Enantiomers Two Compounds that au non- Supewimposable irror Images of each ottun Diasteuiomers not Two Steuiofso mexs that UTYO Images o each other Greometical isomers (cis toans isomers) au one type ob Diastewomers Types of Steueo isomers fossi bu chisal centre Achinal Enantiamers Enantiomeus + Diasleuiomens

ot Stewioiso mess NOC NO in the molecule No blane ot Symmehy is present case-I 94 NO O optical active tor m a=2" Total Number o Steuioisomen No o Enantiomeuic par 2 mix turu 9 2 Tacemic NO NO O7 Mes torm 0 Assyme trie centre 94 Compound has plan of Symmety case-IT 94 add asymmeaic centre is present 34 ven asymmuaric centre is paesent h- optically Active torm Noat opically Active h-1 No ot Enantiomuuicpair q NO O Enan tiomeuic par 2 Racemic mixtuu a No O dace mic mixture a NO OT 2 m= -1 NO 97 Meso torm Meso tor m m: Total Number o1 Steueoisomer TOtal Humben atm Steeo isomer at m

Come to the Ques tHon Now OH b steruoisomer in C9) NO Он No plane of Symmeby is present No ob chisal centre present in this molecule 3 fox chiral centre Now, Total No 0b Stereioisomen = 2 (b) он can be possibu two Case Hew он OH (b) Both o4 trans to each othr a) Both -oH Syn to eachother iH both OH to each othn auu let Us discuss first case CHЗ Acc to fisheu projection ol Compound a No plone o ymmeby ts present Но H H CHз Them 2h NO o steuetoiss mur Total No ot Chiral Centre = 9 =4 HSteuio isomers au present

Now for 2nd 9both -o 40up au trans to Case each othex then, CH3 fischew Projection gH we write this in -o4 H OH CH3 Plane o Symmuy present in this moleule is chiral centre is present And even 1 NO o6 optically Active torm No 66 Enantiomuwic par 21 2 -1: m No 6 Meso tor m: Number ot steuoisomen at m Total Cc) Cl b Assymuhic Centre NO Total Nomber 0 steuioisomer: 2- 16 d) Plone ob Symmehy present in this moleale Nnd even Assymehie Centre is poesent

2za No 03 0ptically Active torm No 0 Meso torm= 1 2m Number ot steusoisomer &+l= 3 Total Ce) OH us considn NO plare ob Symmuty is present in this moleule Total Mo ob steioisomer 2" nz 2 2 (1) planu oh symmuty Contain Nolecule does not any Number ob Sleuioisomen Total 32 31 Steuuioisomurs au present in this molecule