Which of the following acts as both Bronsted acid & Bronsted base
Question
Which of the following acts as both Bronsted acid & Bronsted base
Solution
The substance that can act as both Bronsted acid and Bronsted base is water (H2O).
Here's why:
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Bronsted-Lowry theory defines an acid as a substance that can donate a proton (H+) and a base as a substance that can accept a proton.
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Water can act as a Bronsted acid because it can donate a proton to form a hydroxide ion (OH-). This happens when water dissociates as follows: H2O → H+ + OH-.
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Water can also act as a Bronsted base because it can accept a proton to form a hydronium ion (H3O+). This happens when water reacts with an acid like HCl: H2O + HCl → H3O+ + Cl-.
So, water is an example of a substance that can act as both a Bronsted acid and a Bronsted base, which makes it an amphoteric substance.
Similar Questions
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