What will be the conjugate bases for the Bronsted acids: HF, H2SO4 and 
?
Bronsted acid: A bronsted acid is a substance that can donate a proton. A bronsted acid is proton-donor.
When an acid loses a proton, the residual part of it has a tendency to regain a proton. Therefore, it behaves as a conjugate base.
Conjugate base ⇌ Conjugate acid - H+ (loses proton)
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