explain briefly about Arrhenius theory? with limitations
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Answer:
Limitations of Arrhenius Theory:
Acids and bases are defined in terms of their aqueous solution and not in terms of the substances themselves. ... According to Arrhenius theory, proton (H+) exist free in aqueous solution. However, in aqueous solution, H+ ion is always hydrated and exist as hydronium ion (H3O+).
Explanation:
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Answer:
Arrhenius theory, theory, introduced in 1887 by the Swedish scientist Svante Arrhenius, that acids are substances that dissociate in water to yield electrically charged atoms or molecules, called ions, one of which is a hydrogen ion (H+), and that bases ionize in water to yield hydroxide ions (OH−).
limition
It fails to explain the acidic nature of substances like CO2, SO2,SO3 etc which do not have hydrogen and similarly it also fails to explain the basic nature of substances like NH3, CaO, MgO etc which do not have -OH group