What will be the decreasing order of basic strength of the following conjugate bases?

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Q.
What will be the decreasing order of basic strength of the following conjugate bases

$^{-} OH, {RO}^{-}, {CH}_{3} {COO}^{-}, C l^{-}$ [2024]

1 ${}^{-}{OH} > R \bar{O} > {CH}_{3} CO \bar{O} > C \bar{l}$

2 $C \bar{l} > R \bar{O} > {}^{-}{OH} > {CH}_{3} CO \bar{O}$

3 $R \bar{O} > {}^{-}{OH} > {CH}_{3} CO \bar{O} > C \bar{l}$

4 $C \bar{l} > {}^{-}{OH} > R \bar{O} > {CH}_{3} CO \bar{O}$

Ans.
(3)

Acidic strength order is : $HCl > {CH}_{3} COOH > HOH > ROH$

Basic strength $\propto \frac{1}{acid strength of conjugate acid}$

Thus basic strength order is: ${RO}^{-} > {OH}^{-} > {CH}_{3} {COO}^{-} > C l^{-}$

Solution

Q.
What will be the decreasing order of basic strength of the following conjugate bases

$^{-} OH, {RO}^{-}, {CH}_{3} {COO}^{-}, C l^{-}$ [2024]

1 ${}^{-}{OH} > R \bar{O} > {CH}_{3} CO \bar{O} > C \bar{l}$

2 $C \bar{l} > R \bar{O} > {}^{-}{OH} > {CH}_{3} CO \bar{O}$

3 $R \bar{O} > {}^{-}{OH} > {CH}_{3} CO \bar{O} > C \bar{l}$

4 $C \bar{l} > {}^{-}{OH} > R \bar{O} > {CH}_{3} CO \bar{O}$

Ans.
(3)

Acidic strength order is : $HCl > {CH}_{3} COOH > HOH > ROH$

Basic strength $\propto \frac{1}{acid strength of conjugate acid}$

Thus basic strength order is: ${RO}^{-} > {OH}^{-} > {CH}_{3} {COO}^{-} > C l^{-}$

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Solution

Q. What will be the decreasing order of basic strength of the following conjugate bases -OH,RO-,CH3COO-,Cl- [2024]

1 OH->RO¯>CH3COO¯>Cl¯

2 Cl¯>RO¯>OH->CH3COO¯

3 RO¯>OH->CH3COO¯>Cl¯

4 Cl¯>OH->RO¯>CH3COO¯

Ans. (3) Acidic strength order is : HCl>CH3COOH>HOH>ROH Basic strength ∝1acid strength of conjugate acid Thus basic strength order is: RO->OH->CH3COO->Cl-

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Q.
What will be the decreasing order of basic strength of the following conjugate bases

$^{-} OH, {RO}^{-}, {CH}_{3} {COO}^{-}, C l^{-}$ [2024]

1 ${}^{-}{OH} > R \bar{O} > {CH}_{3} CO \bar{O} > C \bar{l}$

2 $C \bar{l} > R \bar{O} > {}^{-}{OH} > {CH}_{3} CO \bar{O}$

3 $R \bar{O} > {}^{-}{OH} > {CH}_{3} CO \bar{O} > C \bar{l}$

4 $C \bar{l} > {}^{-}{OH} > R \bar{O} > {CH}_{3} CO \bar{O}$

Ans.
(3)

Acidic strength order is : $HCl > {CH}_{3} COOH > HOH > ROH$

Basic strength $\propto \frac{1}{acid strength of conjugate acid}$

Thus basic strength order is: ${RO}^{-} > {OH}^{-} > {CH}_{3} {COO}^{-} > C l^{-}$