Biosensors Questions & Answers
Biosensors Questions & Answers 1. Which of the following is not a characteristic of the immobilized enzymes? a) They cannot be re-used b) It produces reproducible results c) Stability exists…
Ion Analyzer Questions & Answers
Ion Analyzer Questions & Answers 1. If a solid or liquid membrane is placed in pure water, the membrane dissolves slightly, producing an equilibrium concentration of the measured ion. This…
Special Designs of Ion Selective Electrodes Questions & Answers
Special Designs of Ion Selective Electrodes Questions & Answers 1. Which of the following gas permeable membrane is used for ammonia gas sensing electrode? a) Silicon rubber b) Microporous Teflon…
Ammonia and Fluoride Electrode Questions & Answers
Ammonia and Fluoride Electrode Questions & Answers 1. In Ammonia electrode, diffusion of dissolved ammonia occurs through the membrane until which of the following conditions occur? a) Concentration becomes equal…
Ion Selective Electrodes Questions and Answers
Ion Selective Electrodes Questions and Answers 1. Which of the following is not the characteristic of ion selective electrodes? a) It is fragile b) Easy to use c) Available in…
Hydrocarbons Questions & Answers
Hydrocarbons Questions & Answers 1. Which of the following methods cannot be used for the estimation of hydrocarbons? a) Mass spectroscopy b) Chemiluminescence method c) Ultraviolet absorption d) Gas chromatography…
Carbon Monoxide Questions & Answers
Carbon Monoxide Questions & Answers 1. Which of the following is the full scale range of Infrared spectroscopy method used for measurement of carbon monoxide? a) 0-2 ppm b) 0-500…
Nitrogen Oxides Questions & Answers
Nitrogen Oxides Questions & Answers 1. In Saltzman method, which of the following are formed when air containing NO2Â is passed in an absorbing solution consisting of the sulphanilic acid and…
Sulphur Di-oxide Monitoring Questions & Answers
Sulphur Di-oxide Monitoring Questions & Answers 1. In West-Gaeke colourimetric procedure, the intensity of the red purple colour is measured photometically and it is proportional to the concentration of sulphur…
Ionization of Gases Questions and Answers
Ionization of Gases Questions and Answers 1. Gases emit radiation under which of the following conditions which can be used for determination of gases? a) When mixed with other gases…
