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What are the strengths of conjuate bases...

What are the strengths of conjuate bases of a strong acid and a weak acid?

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An acid which gives a proton easily is a strong acid. A conjugate base which cannot hold the proton strongly is a weak base. So the conjugate base of strong acid is weak base.
A strong base is that which can hold the proton strongly. So the conjugate base of a weak acid is stronger base.
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