Chemical Instrumentation MCQs with Answers
Which instrument is commonly used for measuring the pH of a solution?
a) Spectrophotometer
b) pH meter
c) Gas chromatograph
d) Mass spectrometer
Answer: b) pH meter
In gas chromatography, which component is responsible for vaporizing the sample?
a) Detector
b) Column
c) Injector
d) Carrier gas
Answer: c) Injector
Which technique is commonly used for determining the molecular weight of a compound?
a) Gas chromatography
b) Mass spectrometry
c) UV-Vis spectroscopy
d) Nuclear magnetic resonance (NMR)
Answer: b) Mass spectrometry
Which instrument is commonly used for measuring the absorbance of light by a sample?
a) Spectrophotometer
b) pH meter
c) Gas chromatograph
d) Mass spectrometer
Answer: a) Spectrophotometer
In liquid chromatography, which component is responsible for separating the sample components?
a) Detector
b) Column
c) Injector
d) Mobile phase
Answer: b) Column
Which technique is commonly used for determining the elemental composition of a sample?
a) Gas chromatography
b) Mass spectrometry
c) UV-Vis spectroscopy
d) Nuclear magnetic resonance (NMR)
Answer: b) Mass spectrometry
Which instrument is commonly used for measuring the intensity of emitted light by an analyte?
a) Spectrophotometer
b) pH meter
c) Atomic absorption spectrometer
d) Mass spectrometer
Answer: c) Atomic absorption spectrometer
In gas chromatography, which component is responsible for detecting and measuring the separated compounds?
a) Detector
b) Column
c) Injector
d) Carrier gas
Answer: a) Detector
Which technique is commonly used for determining the concentration of an analyte in a sample?
a) Gas chromatography
b) Spectrophotometry
c) Nuclear magnetic resonance (NMR)
d) X-ray diffraction
Answer: b) Spectrophotometry
Which instrument is commonly used for measuring the mass-to-charge ratio of ions?
a) Spectrophotometer
b) pH meter
c) Gas chromatograph
d) Mass spectrometer
Answer: d) Mass spectrometer
In liquid chromatography, which component is responsible for introducing the sample into the system?
a) Detector
b) Column
c) Injector
d) Mobile phase
Answer: c) Injector
Which technique is commonly used for determining the structural information of compounds?
a) Gas chromatography
b) Mass spectrometry
c) UV-Vis spectroscopy
d) Nuclear magnetic resonance (NMR)
Answer: d) Nuclear magnetic resonance (NMR)
Which instrument is commonly used for measuring the concentration of an element in a sample?
a) Spectrophotometer
b) pH meter
c) Atomic absorption spectrometer
d) Mass spectrometer
Answer: c) Atomic absorption spectrometer
In gas chromatography, which component is responsible for carrying the sample through the system?
a) Detector
b) Column
c) Injector
d) Carrier gas
Answer: d) Carrier gas
Which technique is commonly used for determining the electronic and vibrational energy levels of molecules?
a) Gas chromatography
b) Mass spectrometry
c) UV-Vis spectroscopy
d) Nuclear magnetic resonance (NMR)
Answer: c) UV-Vis spectroscopy
Which instrument is commonly used for measuring the charge-to-mass ratio of ions?
a) Spectrophotometer
b) pH meter
c) Gas chromatograph
d) Mass spectrometer
Answer: d) Mass spectrometer
In liquid chromatography, which component is responsible for detecting and measuring the separated compounds?
a) Detector
b) Column
c) Injector
d) Mobile phase
Answer: a) Detector
Which technique is commonly used for determining the isotopic composition of a sample?
a) Gas chromatography
b) Mass spectrometry
c) UV-Vis spectroscopy
d) Nuclear magnetic resonance (NMR)
Answer: b) Mass spectrometry
Which instrument is commonly used for measuring the absorbance and transmittance of light by a sample?
a) Spectrophotometer
b) pH meter
c) Atomic absorption spectrometer
d) Mass spectrometer
Answer: a) Spectrophotometer
In gas chromatography, which component is responsible for separating the sample components?
a) Detector
b) Column
c) Injector
d) Carrier gas
Answer: b) Column
Which technique is commonly used for determining the presence and concentration of metals in a sample?
a) Gas chromatography
b) Spectrophotometry
c) Atomic absorption spectroscopy
d) Nuclear magnetic resonance (NMR)
Answer: c) Atomic absorption spectroscopy
Which instrument is commonly used for measuring the fluorescence of a sample?
a) Spectrophotometer
b) pH meter
c) Fluorimeter
d) Mass spectrometer
Answer: c) Fluorimeter
In liquid chromatography, which component is responsible for holding the stationary phase?
a) Detector
b) Column
c) Injector
d) Mobile phase
Answer: b) Column
Which technique is commonly used for determining the molecular structure and bonding in compounds?
a) Gas chromatography
b) Mass spectrometry
c) Infrared spectroscopy
d) Nuclear magnetic resonance (NMR)
Answer: d) Nuclear magnetic resonance (NMR)
Which instrument is commonly used for measuring the absorbance and emission of ultraviolet and visible light by a sample?
a) Spectrophotometer
b) pH meter
c) Atomic absorption spectrometer
d) Fluorimeter
Answer: a) Spectrophotometer
In gas chromatography, which component is responsible for vaporizing the sample?
a) Detector
b) Column
c) Injector
d) Carrier gas
Answer: c) Injector
Which technique is commonly used for determining the molecular weight of a compound?
a) Gas chromatography
b) Mass spectrometry
c) UV-Vis spectroscopy
d) Nuclear magnetic resonance (NMR)
Answer: b) Mass spectrometry
Which instrument is commonly used for measuring the absorbance of light by a sample?
a) Spectrophotometer
b) pH meter
c) Gas chromatograph
d) Mass spectrometer
Answer: a) Spectrophotometer
In liquid chromatography, which component is responsible for separating the sample components?
a) Detector
b) Column
c) Injector
d) Mobile phase
Answer: b) Column
Which technique is commonly used for determining the elemental composition of a sample?
a) Gas chromatography
b) Mass spectrometry
c) UV-Vis spectroscopy
d) Nuclear magnetic resonance (NMR)
Answer: b) Mass spectrometry
Which instrument is commonly used for measuring the intensity of emitted light by an analyte?
a) Spectrophotometer
b) pH meter
c) Atomic absorption spectrometer
d) Mass spectrometer
Answer: c) Atomic absorption spectrometer
In gas chromatography, which component is responsible for detecting and measuring the separated compounds?
a) Detector
b) Column
c) Injector
d) Carrier gas
Answer: a) Detector
Which technique is commonly used for determining the concentration of an analyte in a sample?
a) Gas chromatography
b) Spectrophotometry
c) Nuclear magnetic resonance (NMR)
d) X-ray diffraction
Answer: b) Spectrophotometry
Which instrument is commonly used for measuring the mass-to-charge ratio of ions?
a) Spectrophotometer
b) pH meter
c) Gas chromatograph
d) Mass spectrometer
Answer: d) Mass spectrometer
In liquid chromatography, which component is responsible for introducing the sample into the system?
a) Detector
b) Column
c) Injector
d) Mobile phase
Answer: c) Injector
Which technique is commonly used for determining the structural information of compounds?
a) Gas chromatography
b) Mass spectrometry
c) UV-Vis spectroscopy
d) Nuclear magnetic resonance (NMR)
Answer: d) Nuclear magnetic resonance (NMR)
Which instrument is commonly used for measuring the concentration of an element in a sample?
a) Spectrophotometer
b) pH meter
c) Atomic absorption spectrometer
d) Mass spectrometer
Answer: c) Atomic absorption spectrometer
In gas chromatography, which component is responsible for carrying the sample through the system?
a) Detector
b) Column
c) Injector
d) Carrier gas
Answer: d) Carrier gas
Which technique is commonly used for determining the electronic and vibrational energy levels of molecules?
a) Gas chromatography
b) Mass spectrometry
c) UV-Vis spectroscopy
d) Nuclear magnetic resonance (NMR)
Answer: c) UV-Vis spectroscopy
Which instrument is commonly used for measuring the charge-to-mass ratio of ions?
a) Spectrophotometer
b) pH meter
c) Gas chromatograph
d) Mass spectrometer
Answer: d) Mass spectrometer
In liquid chromatography, which component is responsible for detecting and measuring the separated compounds?
a) Detector
b) Column
c) Injector
d) Mobile phase
Answer: a) Detector
Which technique is commonly used for determining the isotopic composition of a sample?
a) Gas chromatography
b) Mass spectrometry
c) UV-Vis spectroscopy
d) Nuclear magnetic resonance (NMR)
Answer: b) Mass spectrometry
Which instrument is commonly used for measuring the absorbance and transmittance of light by a sample?
a) Spectrophotometer
b) pH meter
c) Atomic absorption spectrometer
d) Mass spectrometer
Answer: a) Spectrophotometer
In gas chromatography, which component is responsible for separating the sample components?
a) Detector
b) Column
c) Injector
d) Carrier gas
Answer: b) Column
Which technique is commonly used for determining the presence and concentration of metals in a sample?
a) Gas chromatography
b) Spectrophotometry
c) Atomic absorption spectroscopy
d) Nuclear magnetic resonance (NMR)
Answer: c) Atomic absorption spectroscopy
Which instrument is commonly used for measuring the fluorescence of a sample?
a) Spectrophotometer
b) pH meter
c) Fluorimeter
d) Mass spectrometer
Answer: c) Fluorimeter
In liquid chromatography, which component is responsible for holding the stationary phase?
a) Detector
b) Column
c) Injector
d) Mobile phase
Answer: b) Column
Which technique is commonly used for determining the molecular structure and bonding in compounds?
a) Gas chromatography
b) Mass spectrometry
c) Infrared spectroscopy
d) Nuclear magnetic resonance (NMR)
Answer: d) Nuclear magnetic resonance (NMR)
Which instrument is commonly used for measuring the absorbance and emission of ultraviolet and visible light by a sample?
a) Spectrophotometer
b) pH meter
c) Atomic absorption spectrometer
d) Fluorimeter
Answer: a) Spectrophotometer
In gas chromatography, which component is responsible for vaporizing the sample?
a) Detector
b) Column
c) Injector
d) Carrier gas
Answer: c) Injector
Which technique is commonly used for determining the molecular weight of a compound?
a) Gas chromatography
b) Mass spectrometry
c) UV-Vis spectroscopy
d) Nuclear magnetic resonance (NMR)
Answer: b) Mass spectrometry
Which instrument is commonly used for measuring the absorbance of light by a sample?
a) Spectrophotometer
b) pH meter
c) Gas chromatograph
d) Mass spectrometer
Answer: a) Spectrophotometer
In liquid chromatography, which component is responsible for separating the sample components?
a) Detector
b) Column
c) Injector
d) Mobile phase
Answer: b) Column
Which technique is commonly used for determining the elemental composition of a sample?
a) Gas chromatography
b) Mass spectrometry
c) UV-Vis spectroscopy
d) Nuclear magnetic resonance (NMR)
Answer: b) Mass spectrometry
Which instrument is commonly used for measuring the intensity of emitted light by an analyte?
a) Spectrophotometer
b) pH meter
c) Atomic absorption spectrometer
d) Mass spectrometer
Answer: c) Atomic absorption spectrometer
In gas chromatography, which component is responsible for detecting and measuring the separated compounds?
a) Detector
b) Column
c) Injector
d) Carrier gas
Answer: a) Detector
Which technique is commonly used for determining the concentration of an analyte in a sample?
a) Gas chromatography
b) Spectrophotometry
c) Nuclear magnetic resonance (NMR)
d) X-ray diffraction
Answer: b) Spectrophotometry
Which instrument is commonly used for measuring the mass-to-charge ratio of ions?
a) Spectrophotometer
b) pH meter
c) Gas chromatograph
d) Mass spectrometer
Answer: d) Mass spectrometer
In liquid chromatography, which component is responsible for introducing the sample into the system?
a) Detector
b) Column
c) Injector
d) Mobile phase
Answer: c) Injector
Which technique is commonly used for determining the structural information of compounds?
a) Gas chromatography
b) Mass spectrometry
c) UV-Vis spectroscopy
d) Nuclear magnetic resonance (NMR)
Answer: d) Nuclear magnetic resonance (NMR)
Which instrument is commonly used for measuring the concentration of an element in a sample?
a) Spectrophotometer
b) pH meter
c) Atomic absorption spectrometer
d) Mass spectrometer
Answer: c) Atomic absorption spectrometer
In gas chromatography, which component is responsible for carrying the sample through the system?
a) Detector
b) Column
c) Injector
d) Carrier gas
Answer: d) Carrier gas
Which technique is commonly used for determining the electronic and vibrational energy levels of molecules?
a) Gas chromatography
b) Mass spectrometry
c) UV-Vis spectroscopy
d) Nuclear magnetic resonance (NMR)
Answer: c) UV-Vis spectroscopy
Which instrument is commonly used for measuring the charge-to-mass ratio of ions?
a) Spectrophotometer
b) pH meter
c) Gas chromatograph
d) Mass spectrometer
Answer: d) Mass spectrometer
In liquid chromatography, which component is responsible for detecting and measuring the separated compounds?
a) Detector
b) Column
c) Injector
d) Mobile phase
Answer: a) Detector
Which technique is commonly used for determining the isotopic composition of a sample?
a) Gas chromatography
b) Mass spectrometry
c) UV-Vis spectroscopy
d) Nuclear magnetic resonance (NMR)
Answer: b) Mass spectrometry
Which instrument is commonly used for measuring the absorbance and transmittance of light by a sample?
a) Spectrophotometer
b) pH meter
c) Atomic absorption spectrometer
d) Mass spectrometer
Answer: a) Spectrophotometer
In gas chromatography, which component is responsible for separating the sample components?
a) Detector
b) Column
c) Injector
d) Carrier gas
Answer: b) Column
Which technique is commonly used for determining the presence and concentration of metals in a sample?
a) Gas chromatography
b) Spectrophotometry
c) Atomic absorption spectroscopy
d) Nuclear magnetic resonance (NMR)
Answer: c) Atomic absorption spectroscopy
Which instrument is commonly used for measuring the fluorescence of a sample?
a) Spectrophotometer
b) pH meter
c) Fluorimeter
d) Mass spectrometer
Answer: c) Fluorimeter