MHT CET · Chemistry · Ionic Equilibrium

A substance containing hydrogen and releasing \(\mathrm{H}^{+}\)in aqueous medium is acid. Identify theory suggesting this concept, from following.

A Ostwald theory
B Bronsted-Lowry theory
C Arrhenius theory
D Lewis theory

Verified Solution

Answer & Solution

Correct Answer

(C) Arrhenius theory

Step-by-step Solution

Detailed explanation

According to Arrhenius theory an acid is a
Substance that contains hydrogen and gives \(\mathrm{H}^{+}\)ions in an aqueous solution.
- \(\quad\) Lewis acid \(\rightarrow\) lone pair acceptor
- \(\quad\) Bronsted-Lowry acid is a substance which donates a proton or \(\mathrm{H}^{+}\)ion to the other compound and forms a conjugated base.

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.

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