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In which of the following solutions must combination electrodes be soaked after cleaning?

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in Analytical Instrumentation by (131k points)
In which of the following solutions must combination electrodes be soaked after cleaning?

(a) KCl

(b) LiCl

(c) KNO3

(d) K2SO4

This question was addressed to me during an interview for a job.

My question is based upon Combination Electrode topic in portion pH Meters and Ion Analysers of Analytical Instrumentation

1 Answer

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Best answer
The correct choice is (a) KCl

The best explanation: Combination electrodes can be soaked in KCl solution after cleaning. This will re-condition the bulb and increases its life.

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