Chromatography Multiple Choice Questions and Answers 1. In Thin layer chromatography, the stationary phase is made of _________ and the mobile phase is made of _________ a) Solid, liquid b) Liquid, liquid c) Liquid, gas d) Solid, gas Answer: Solid, liquid. 2. Chromatography is a physical method that is used to separate and analyse __________ a) Simple mixtures b) Complex mixtures c) Viscous mixtures d) Metals Answer: Complex mixtures. 3. In Gas-liquid phase chromatography, the stationary phase is composed of _________ and the mobile phase is made of _________ a) Solid, liquid b) Liquid, liquid c) Liquid, gas d) Solid, gas Answer: Liquid, gas. 4. In Column chromatography, the stationary phase is made of _________ and the mobile phase is made of _________ a) Solid, liquid b) Liquid, liquid c) Liquid, gas d) Solid, gas Answer: Solid, liquid. 5. In chromatography, the stationary phase can be ___________ supported on a solid. a) Solid or liquid b) Liquid or gas c) Solid only d) Liquid only

Colorimetry and Spectrometry Multiple Choice Questions and Answers 1. Beer’s law states that the intensity of light decreases with respect to ___________ a) Concentration b) Distance c) Composition d) Volume Answer: Concentration. 2. Laminar flow burner used in Flame photometers is also known as ____________ a) Turbulent burner b) Premix burner c) Total consumption burner d) Nozzle mix burner Answer: Premix burner. 3. Bolometer, a type of detector, is also known as ___________ a) Resistance temperature detector (RTD) b) Thermistor c) Thermocouple d) Golay cell Answer: Thermistor. 4. Lambert’s law states that the intensity of light decreases with respect to __________ a) Concentration b) Distance c) Composition d) Volume Answer: Distance. 5. In Michelson’s interferometer, the __________ of the detector output will depend upon the intensity of incoming radiation. a) Velocity b) Frequency c) Amplitude d) Phase Answer: Amplitude. 6. In Flame emission photometers, the measurement of _______

Analytical Instrumentation  MCQ 1. Lambert’s law states that the intensity of light decreases with respect to __________ a) Concentration b) Distance c) Composition d) Volume Answer: Distance 2. Beer’s law states that the intensity of light decreases with respect to ___________ a) Concentration b) Distance c) Composition d) Volume Answer: Concentration 3. Which of the following detectors does not require a battery and is also known as barrier layer cell? a) Photomultiplier tube b) Photovoltaic cell c) Photoemissive tubes d) Photo reflector Answer: Photovoltaic cell 4. Which of the following is not a type of Spectroscopy? a) Gamma ray b) X ray c) Nuclear magnetic resonance d) Sound Answer: Sound 5. How is Tungsten Halogen lamp differs from normal Tungsten filament lamp used in absorption spectroscopy? a) It has a tungsten filament and is filled with inert gas b) Iodine is added to normal filling gas c) Iodine is coated on tungsten filament d) Iodine is added to inert gas Answer: Iodine

Measurement and Instrumentation Questions and Answers  1. For measurement of low resistances, Kelvin's double bridge has high accuracy because: a. It has two sets of ratio arms which eliminate the effects resistance of connecting lead b. It has a galvanometer indicating zero c. It has two null pointers d. It has four sets of ratio arms that eliminate effect of resistance of connecting lead Answer: It has two sets of ratio arms which eliminate the effects resistance of connecting lead 2. Swamp resistance is a built-up resistance_____________ a. An alloy of Manganese and Copper b. An alloy of aluminum and copper c. Alloys of nickel and cobalt d. Alloys of Manganese and Aluminum Answer: An alloy of Manganese and Copper 3. A meter of swamping resistance in a moving coil added in ______ a. Minimize frequency error b. Reduce temperature error c. Reduce electricity consumption d. All of these Answer: Reduce temperature error 4. Frequency error in induction devices can be compensated by us