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Question
Conjugate acid of a weak base is always stronger. What will be the decreasing order of basic strength of the following conjugate bases?
\[\ce{OH-, RO-, CH3COO-, Cl-}\]
Solution
As the Conjugate acid of a weak base is always stronger and conjugate base of weak acid is always strong.
The weak acids are:
⇒ \[\ce{H2O, ROH, CH3COOH, HCl}\]
⇒ \[\ce{HCl > CH3COOH > ROH > H2O}\]
⇒ Conjugate base order ⇒ \[\ce{OH- > RO- > CH3COO- > Cl-}\]
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