Related InterviewSolutions

• Which of the following is the formula for pH calculation?(a) log10[H+](b) -log10[H+](c) log2[H+](d) -log2[H+]I have been asked this question by my school teacher while I was bunking the class.Enquiry is from pH Measurement and Types in division pH Meters and Ion Analysers of Analytical Instrumentation
• Which of the following is not the disadvantage of hydrogen electrode?(a) Platinum can be easily poisoned(b) Presence of oxidising agents alters the potential(c) It gives a salt error(d) H2 gas at 1 atmospheric pressure is difficult to set up and transportI got this question in a job interview.I'd like to ask this question from Hydrogen and Glass Electrodes topic in section pH Meters and Ion Analysers of Analytical Instrumentation
• Combination electrodes containing the electrolyte in gel format have which of the following advantages over normal ones?(a) Simple to use(b) Low maintenance(c) Low cost(d) More accurateI have been asked this question in class test.The query is from Combination Electrode topic in chapter pH Meters and Ion Analysers of Analytical Instrumentation
• Which of the following is not the characteristics of a calomel electrode?(a) The potential of electrode is not temperature dependent(b) Preparation of electrode is easy(c) Value of potential or emf is higher for lower concentration of Kcl(d) Value of potential decreases with increasing concentration of KclThe question was asked in an interview.I would like to ask this question from Secondary Reference Electrodes in section pH Meters and Ion Analysers of Analytical Instrumentation
• In which of the following solutions must combination electrodes be soaked after cleaning?(a) KCl(b) LiCl(c) KNO3(d) K2SO4This 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
• Which of the following is the physico-chemical component?(a) Enzymes(b) Anti-bodies(c) Transducer(d) Cells or tissuesI got this question during an online interview.Asked question is from Biosensors in section pH Meters and Ion Analysers of Analytical Instrumentation
• Biosensors measure glucose concentrations between which of the following ranges?(a) 10^-1 to 10^-2 M(b) 10^-2 to 10^-4 M(c) 10^-1 to 10^-4 M(d) 10^-1 to 10^-7 MThe question was posed to me during an online exam.I'm obligated to ask this question of Biosensors in section pH Meters and Ion Analysers of Analytical Instrumentation
• Which of the following is not the disadvantage of glass electrodes?(a) Poor readings are obtained in buffered or unbuffered solutions(b) The electrode must be washed thoroughly with distilled water to obtain proper results(c) Materials suspended on glass should be wiped out neatly to obtain proper results(d) It is affected by oxidation reduction potentials in the solutionI got this question in an interview for job.This question is from Hydrogen and Glass Electrodes topic in section pH Meters and Ion Analysers of Analytical Instrumentation
• The calomel electrodes are classified based on which of the following?(a) Materials used in the electrode(b) Amount of mercury present(c) Concentration of Kcl(d) Purity of mercuryI had been asked this question in a national level competition.This interesting question is from Secondary Reference Electrodes topic in division pH Meters and Ion Analysers of Analytical Instrumentation
• The performance of ammonia electrode is not affected by sample colour and turbidity.(a) True(b) FalseThis question was posed to me in final exam.My enquiry is from Ammonia and Fluoride Electrode topic in portion pH Meters and Ion Analysers of Analytical Instrumentation