1.

Conjugate base for bronsted acids H_2O and HF are………

Answer»

`OH^- and H_2FH^+` RESPECTIVELY
`H_3O^+ and F^-` respectively
`OH^- and F^-` ,respectively
`H_3O^+ and H_2F^+`, respectively

Solution :`H_2O_(ACID 1)+H_2O_(BASE 1)=H_3O_(acid2)^(+)+OH_(base2)^-`
`HF_(acid 1)+H_2O_(base 1) leftrightarrowH_3O_(acid2)^(+)+F_(base 2)^(-)`
`therefore` CONJUGATE base are `OH^- and F^-` respectively


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