Question

Which compounds are classified as Arrhenius acids?

(1) HCl and NaOH
(2) HNO3 and NaCl
(3) NH3 and H2CO3
(4) HBr and H2SO4

Answer 1

(4) HBr i H2SO4...........

Answer 2

Answer:The correct answer is option 4.

Step-by-step explanation:

Arrhenius acids are those compounds which gives
`H^+` ions when dissolved in their aqueous solution.

`HA(aq)\rightarrow H^++A^-`

Arrhenius bases are those compounds which gives
`OH^-` ions when dissolved in their aqueous solution.

`BOH(aq)\rightarrow OH^-+B^+`

`HBr \& H_2SO_4` are Arrhenius acids because they form
`H^+`ions in their respective aqueous solution.

`HBr(aq)\rightarrow H^++Br^-`

`H_2SO_4(aq)\rightarrow 2H^++SO_(4)^(2-)`

Hence, the correct answer is option 4.