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Which of the following is not a postulate of Arrhenius’s concept of acids and bases?

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Non-metal oxides are generally acidic, but they do not contain hydrogen.

All bases that ionize completely and hence, produce more concentration of OH– ions in their aqueous solutions are called strong bases.

A base is a substance that produces OH– ions in the aqueous solution.

An acid is a substance that contains hydrogen and produces H+ ions in an aqueous solution.

answer is D.

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Detailed Solution

Arrhenius’s theory could not explain the acidic nature of substances, which do not contain hydrogen. For example, non-metal oxides are generally acidic, but they do not contain hydrogen.

Examples: CO2, SO3, etc.

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