4. What is the degree of unsaturation of the following molecule? a) 3 b)4 c)5 d)

Question

4. What is the degree of unsaturation of the following molecule? a) 3 b)4 c)5 d)6 e) 7 CH3 5. What kind of orientation does the transition state have in the bimolecular elimination reaction? a) Walden Inversion b) Anti- coplanar c) Racemization ) Rearrangement 6. Which reaction is not following the Markovnikov's rule? a) Oxymercuration-demercuration b) Alkoxymercuartion- demercuration c) Halohydrin formation of alkene d) Free radical reaction of alkene with HBr 7. In cis 4-hepten-2-yne the shortest carbon-carbon bond is betweern a) 1 and 2 b) 2 and3 c) 3 and 4 d) 4 and 5

Explanation / Answer

4. (a) degree of unsaturation is three.

5 (b) anticoplanar

6 (d) free radical recation of alkene with HBr

7 (a) 1 and 2. Because the triple bonds are the strongest and shortest.

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