28. These two polymers are (A) tautomers. (B) constitutional isomers. (C) diaste

Question

28. These two polymers are (A) tautomers. (B) constitutional isomers. (C) diastereomers. (D) structural isomers. 29. The rate law for this reaction is: Rate=k[R-ClICH,01 Na CH30, CH3OH 60 °C Cl 25% 75% What would be the anticipated result if this same elimination reaction was performed with potassium +-butoxide (CH),CO K') as the base? (A) 2-Methyl-1-pentene would be the major product. (B) 2-Methyl-2-pentene would be fo greater abundance. (C) The product distribution would remain the same. Only a bimolecular substitution reaction would occur.

Explanation / Answer

Ans. 28. C

Diastereomers are stereoisomers that are not mirror images of one another and are non-superimposable on one another.

29. A

Reason: Steric effect of bulky group

The bulky base has severe steric interactions with subtrate, increasing the energy the energy of transition state(and lowering the yield of Zaitsev product).

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