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pH is the measurement of _________

(a) concentration of H^+

(b) concentration of H^–

(c) concentration of OH^+

(d) concentration of OH^–

This question was posed to me during an online interview.

The doubt is from Instrumentation and Control in portion Instrumentation and Control of Fermentation Technology

1 Answer

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Best answer
The correct option is (a) concentration of H^+

To explain: The pH is the measurement of H^+ ions in the solution. The pH scale was given by Sorenson. pH scale consists of numbers 1 to 14 with a pH of 1 being most acidic and 14 being most basic. pH 7 is a neutral solution.

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