Q. Which of the following is not a problem of ion selective electrodes?

View solution

Q. Which of the following is the effective concentration measured at the electrode head?

View solution

Q. The value of activity coefficient is always in which of the following ranges?

View solution

Q. Which of the following specifies the relation between ionic strength and activity coefficient?

View solution

Q. The difference between measured activity and actual concentration becomes higher at higher concentration. Is this statement true or false?

View solution

Q. Ion selective electrodes have ________ linear range and _________ detection limit than the pH electrode.

View solution

Q. In Ammonia electrode, diffusion of dissolved ammonia occurs through the membrane until which of the following conditions occur?

View solution

Q. When electrode potential response is plotted as a function of ammonia concentration on a semi-log graph, the graph obtained will be ____________

View solution

Q. How can samples above 1M in ammonia concentration be measured using ammonia electrode?

View solution

Q. The dilution of solution must not reduce the level of ammonia below _________

View solution

Q. Which of the following factors does not the reproducibility of the ammonia electrode?

View solution

Q. The performance of ammonia electrode is not affected by sample colour and turbidity.

View solution

Q. In fluoride ion electrode, the potential corresponding to level of the fluoride ion is described by which of the following equations when E is the measured electrode potential, E₀ is the reference potential and A is the level of fluoride ions in solution?

View solution

Q. What does TISAB which is used to overcome interferences stand for?

View solution

Q. Which of the following causes main interference in Fluoride electrode?

View solution

Q. Crystal membrane of ion selective electrode can be regenerated by washing with which of the following?

View solution

Q. For fluoride electrode, the electrode response curve will not only shift but will change slope with changes in temperature.

View solution

Q. Which of the following gas permeable membrane is used for ammonia gas sensing electrode?

View solution

Q. Which of the following gas permeable membrane is used for carbon dioxide gas sensing electrode?

View solution

Q. The response time of the biocatalytic membrane electrode is poor when used with complex organic molecules.

View solution