The conductivitimetry method, involves bubbling sulphur dioxide through a solution containing sulphuric acid and which of the following?
(a) Water
(b) Hydrogen peroxide
(c) Iodine
(d) Formaldehyde
This question was addressed to me in exam.
Question is taken from Sulphur Di-oxide Monitoring topic in portion Pollution Monitoring Instruments of Analytical Instrumentation