Question

n an elimination reaction, the non-preferred geometry in which the β hydrogen and the leaving group are on the same side of the molecule is called ____________ periplanar. According to the ____________ rule, the major product in a β-elimination has the more substituted double bond. In an ____________ reaction, the rate depends on only the alkyl halide concentration. The rate of the ____________ reaction increases as the strength of the base increases because the reaction is biolecular and the base appears in the rate equation. Carbocation intermediates are involved in ____________ mechanisms. Polar aprotic solvents increase the rate of the ____________ reactions. Anti periplanar geometry is the preferred arrangement for any alkyl halide undergoing ____________ elimination, regardless of whether it is cyclic or acyclic.

Answer 1

Step-by-step explanation:

In an elimination reaction, the non-preferred geometry in which the β hydrogen and the leaving group are on the same side of the molecule is called syn periplanar. According to the Zaitev rule, the major product in a β-elimination has the more substituted double bond. In an E1 reaction, the rate depends on only the alkyl halide concentration. The rate of the E2 reaction increases as the strength of the base increases because the reaction is biolecular and the base appears in the rate equation. Carbocation intermediates are involved in E1 mechanisms. Polar aprotic solvents increase the rate of the E2 reactions. Anti periplanar geometry is the preferred arrangement for any alkyl halide undergoing E2 elimination, regardless of whether it is cyclic or acyclic.