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Chapter 1: Q21P (page 2)

Rank the carbanions shown in the margin from most basic to least basic.

HC=C-

H2C=CH-

H3C-CH2-

Short Answer

Expert verified

H3C-CH2->H2C=CH->HC=C-

Step by step solution

01

Understanding the basic strength

All the above-given ions are conjugate bases of acids. In order to categorize them according to their basic strength, we need to compare the acidity of the respective acids. The acid with the least acidity will have the most basic conjugate base.

02

Ranking the ions from most basic to least basic

Order of acidic strength:HC=CH>H2C=CH2>H3C-CH3

Order of basic strength:H3C-CH2->H2C=CH->HC=C-

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