If an acid-base reaction `HA(aq)+B^(-)(aq)hArr HB(aq)+A^(-)(aq)` has `K_(aq)=10^(-4)`.how many of the following statements are true? (i) `HB` is stron
If an acid-base reaction `HA(aq)+B^(-)(aq)hArr HB(aq)+A^(-)(aq)` has `K_(aq)=10^(-4)`.how many of the following statements are true?
(i) `HB` is stronger acid than `HA`
(ii) `HA` is stronger acid than `HB`
(iii) `HA` and `HB` have the same acidic strength
(iv) `B^(-)` stronger base than `A^(-)`
(v) `A^(-)` is stronger base than `B^(-)`
(vi) `B^(-)` and `HB` are conjugate acid-base pair
(vii) `A^(-)` is the conjugate base of acid `HA`.
(viii)`HA` can be`HSO_(4)^(-)` and `HB` can be `HCOOH`.
`A^(-)` can be `F^(-)` and `B^(-)` can be `CN^(-)`
1 Answers
`HA(aq)+B^(-)(aq)hArr HB(aq)+A^(-)(aq)" "K_(eq)=10^(-4)`
`K_(eq)` is very small .So reaction shift in backward direction.
`(1) HB` is more stronger acid than `HA`
(2) `A^(-)` is more stronger base than `B^(-)`
(3) `B^(-)` and `HB` are conjugate acid-base pair.