The acidic strength of active methylene group in I. `CH_(3)COCH_(2)COOH_(2)H_(5)` II.`CH_(3)COCH_(2)COOH_(3)` III. `C_(2)H_(5)OOC CH_(2)COOC_(2)H_(5)`

Question

The acidic strength of active methylene group in I. `CH_(3)COCH_(2)COOH_(2)H_(5)` II.`CH_(3)COCH_(2)COOH_(3)` III. `C_(2)H_(5)OOC CH_(2)COOC_(2)H_(5)`

The acidic strength of active methylene group in
I. `CH_(3)COCH_(2)COOH_(2)H_(5)`
II.`CH_(3)COCH_(2)COOH_(3)`
III. `C_(2)H_(5)OOC CH_(2)COOC_(2)H_(5)`
A. `I gt III gt II`
B. `I gt II gt III`
C. `II gt I gt III`
D. `III gt I gt II`

Monjur Alahi

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2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

Correct Answer - C
Acidic strength in active methylene compounds can be decided by two factors
(i) Presence of electron withdrawing group.
(ii) Stability of enolate anion obtained after removal of `H^(+)`
Hence, `II gt I gt III`

5 views Answered 2023-02-05 15:29