Question

3. a) Decide whether these alkenes should be described as E or Z. Only write the full name if indicated you should. (also give full name) H Br b) Decide whether these arenes should be described as ortho, meta or para. pelom aid Br Br но. CI OH 4. a) Why is it unnecessary to use the cis/trans or E/Z labels label to describe the double bond geometry in a cyclohexene? oranunsbg2 sb b) Rank these alkenes in order of stability, where 1 most stable and 4 least stable. e c) In part (b) above compound "e" is a stereoisomer of which compound(s)? Compound "e" is a constitutional isomer of which compound(s)?

Answer 1

96 FM nomes TH Elsomer (E) 3,4 dimethyl benta-ene zisomer 5 6 (2) 4.bromo a methythebt zenia-one zisomer (2) C4-chlord 3-methylbut 2-enep-ye) benzene

(Pera) 0 Meta i Junctional groups i BANYOSSWWWWWW Laa ortho (functional quoups are at orthoposition Poom each other) re at meta position Trom eachother , (functional group are at pera position from each other) in all manner it remain is same steno so it in unecessary to chcribe cshans or E orz. 24h © = BH 30A 2HQ , 307 324 H 13 KH & H . - 3 H. The It> h>e>gl more & Hydrogen more stable alken and trans loomer are more stable then cix e ix stereoisomer of (9) comb e in constitutiona inomer of ff)(h), a