Which of the following is not true about using gas chromatography for measuring pollutants in the air?

Pollutants react rapidly in the column

Pollutants may not be detected by the detectors

Special column and support materials are required

Pollutants may elude rapidly from the column

Which of the following are not the characteristics of colorimetry method used to monitor sulphur dioxide?

It is affected by interference from H2SO4, SO3, NH3, etc

Which of the following are not the characteristics of conductivitimetry method used to measure sulphur dioxide?

Free from interference by other gases

In West-Gaeke colourimetric procedure, the intensity of the red purple colour is measured photometically and it is proportional to the concentration of sulphur dioxide. What is the red purple coloured compound?

Dicholorosulphitomercurate complex

Which of the following is not true about using gas chromatography for measuring pollutants in air?

Pollutants react rapidly in the column

Pollutants may not be detected by the detectors

Special column and support materials are required

Pollutants may elude rapidly from the column

Which of the following are not the characteristics of conductivitimetry method used to measure sulphur di-oxide?

Free from interference by other gases

In West-Gaeke colourimetric procedure, the intensity of the red purple colour is measured photometically and it is proportional to the concentration of sulphur di-oxide. What is the red purple coloured compound?

Dicholorosulphitomercurate complex

26 + Mcqs in Sulphur Dioxide Monitoring in Analytical Instrumentation Page 1 McqOptions

1.	In the conductivitimetric method, to measure the conductivity of the cell, 5V ___________ is applied across the electrodes.
A.	DC
B.	AC
C.	Pulsating DC
D.	DC or AC
Answer» C. Pulsating DC

Discussion

2.	In conductivitimetric method, the concentration of sulphur dioxide is proportional to which of the following parameters of the saw-tooth waveform?
A.	Average voltage
B.	Peak voltage
C.	Slope
D.	RMS voltage
Answer» D. RMS voltage

Discussion

3.	Given below, is the diagram of Ultraviolet Fluorescence method. Identify the unmarked component.
A.	Filter
B.	Electronic circuit
C.	Supply
D.	Fluorescence chamber
Answer» E.

Discussion

4.	Which of the following is the wavelength of the radiation generated when an air stream containing sulphur dioxide is burned in a hydrogen-rich flame?
A.	243 nm
B.	394 nm
C.	467 nm
D.	516 nm
Answer» C. 467 nm

Discussion

5.	Which of the following methods are not used for the measurement of sulphur dioxide?
A.	Colorimetric method
B.	Correlation spectroscopy
C.	Paramagnetic analyzers
D.	Flame-photometry
Answer» D. Flame-photometry

Discussion

6.	Sensitivity to total sulphur by Flame-photometric detector is which of the following levels?
A.	0.1 ppm
B.	1 ppm
C.	2 ppm
D.	0.01 ppm
Answer» E.

Discussion

7.	Which of the following is the detection limit of the coulometric method used for measurement of sulphur dioxide?
A.	0.1 ppm
B.	1 ppm
C.	2 ppm
D.	0.01 ppm
Answer» E.

Discussion

8.	Which of the following materials are used as electrodes in the coulometric method for the measurement of sulphur dioxide?
A.	Gold
B.	Silver
C.	Platinum
D.	Nickel
Answer» D. Nickel

Discussion

9.	Which of the following is not true about using gas chromatography for measuring pollutants in the air?
A.	Pollutants react rapidly in the column
B.	Pollutants may not be detected by the detectors
C.	Special column and support materials are required
D.	Pollutants may elude rapidly from the column
Answer» E.

Discussion

10.	Which of the following are not the characteristics of colorimetry method used to monitor sulphur dioxide?
A.	It is simple
B.	It has high sensitivity
C.	It has good specificity
D.	It is affected by interference from H2SO4, SO3, NH3, etc
Answer» E.

Discussion

11.	Which of the following are not the characteristics of conductivitimetry method used to measure sulphur dioxide?
A.	Fast response
B.	High sensitivity
C.	Free from interference by other gases
D.	Good accuracy
Answer» D. Good accuracy

Discussion

12.	The conductivitimetry method, involves bubbling sulphur dioxide through a solution containing sulphuric acid and which of the following?
A.	Water
B.	Hydrogen peroxide
C.	Iodine
D.	Formaldehyde
Answer» C. Iodine

Discussion

13.	In West-Gaeke colourimetric procedure, the intensity of the red purple colour is measured photometically and it is proportional to the concentration of sulphur dioxide. What is the red purple coloured compound?
A.	Sodium tetra chloromercurate
B.	Dicholorosulphitomercurate complex
C.	Ammonia molybdate
D.	Paraosaniline sulphonic acid
Answer» E.

Discussion

14.	SENSITIVITY_TO_TOTAL_SULPHUR_BY_FLAME-PHOTOMETRIC_DETECTOR_IS_WHICH_OF_THE_FOLLOWING_LEVELS??$
A.	0.1 ppm
B.	1 ppm
C.	2 ppm
D.	0.01 ppm
Answer» E.

Discussion

15.	Which of the following is the wavelength of the radiation generated when an air stream containing sulphur di-oxide is burned in a hydrogen-rich flame?$
A.	243 nm
B.	394 nm
C.	467 nm
D.	516 nm
Answer» C. 467 nm

Discussion

16.	Which_of_the_following_methods_are_not_used_for_the_measurement_of_sulphur_di-oxide?$
A.	Colorimetric method
B.	Correlation spectroscopy
C.	Paramagnetic analyzers
D.	Flame-photometry
Answer» D. Flame-photometry

Discussion

17.	The response of coulometric method is instantaneous.
A.	True
B.	False
Answer» C.

Discussion

18.	In conductivitimetric method, to measure the conductivity of the cell, 5V ___________ is applied across the electrodes.
A.	DC
B.	AC
C.	Pulsating DC
D.	DC or AC
Answer» C. Pulsating DC

Discussion

19.	In conductivitimetric method, the concentration of sulphur di-oxide is proportional to which of the following parameters of the saw-tooth waveform?
A.	Average voltage
B.	Peak voltage
C.	Slope
D.	RMS voltage
Answer» D. RMS voltage

Discussion

20.	Which of the following is the detection limit of coulometric method used for measurement of sulphur di-oxide?
A.	0.1 ppm
B.	1 ppm
C.	2 ppm
D.	0.01 ppm
Answer» E.

Discussion

21.	Which of the following materials are used as electrodes in coulometric method for the measurement of sulphur di-oxide?
A.	Gold
B.	Silver
C.	Platinum
D.	Nickel
Answer» D. Nickel

Discussion

22.	The ability of sulphur dioxide to reduce iodine is used in which of the following methods?
A.	Colorimetry
B.	Conductivitimetry
C.	Coulometry
D.	Gas chromatography
Answer» D. Gas chromatography

Discussion

23.	Which of the following is not true about using gas chromatography for measuring pollutants in air?
A.	Pollutants react rapidly in the column
B.	Pollutants may not be detected by the detectors
C.	Special column and support materials are required
D.	Pollutants may elude rapidly from the column
Answer» E.

Discussion

24.	Which of the following are not the characteristics of conductivitimetry method used to measure sulphur di-oxide?
A.	Fast response
B.	High sensitivity
C.	Free from interference by other gases
D.	Good accuracy
Answer» D. Good accuracy

Discussion

25.	The conductivitimetry method, involves bubbling sulphur di-oxide through a solution containing sulphuric acid and which of the following?
A.	Water
B.	Hydrogen peroxide
C.	Iodine
D.	Formaldehyde
Answer» C. Iodine

Discussion

26.	In West-Gaeke colourimetric procedure, the intensity of the red purple colour is measured photometically and it is proportional to the concentration of sulphur di-oxide. What is the red purple coloured compound?
A.	Sodium tetra chloromercurate
B.	Dicholorosulphitomercurate complex
C.	Ammonia molybdate
D.	Paraosaniline sulphonic acid
Answer» B. Dicholorosulphitomercurate complex

Discussion

Explore topic-wise MCQs in Analytical Instrumentation.

In the conductivitimetric method, to measure the conductivity of the cell, 5V ___________ is applied across the electrodes.

In conductivitimetric method, the concentration of sulphur dioxide is proportional to which of the following parameters of the saw-tooth waveform?

Given below, is the diagram of Ultraviolet Fluorescence method. Identify the unmarked component.

Which of the following is the wavelength of the radiation generated when an air stream containing sulphur dioxide is burned in a hydrogen-rich flame?

Which of the following methods are not used for the measurement of sulphur dioxide?

Sensitivity to total sulphur by Flame-photometric detector is which of the following levels?

Which of the following is the detection limit of the coulometric method used for measurement of sulphur dioxide?

Which of the following materials are used as electrodes in the coulometric method for the measurement of sulphur dioxide?

Which of the following is not true about using gas chromatography for measuring pollutants in the air?

Which of the following are not the characteristics of colorimetry method used to monitor sulphur dioxide?

Which of the following are not the characteristics of conductivitimetry method used to measure sulphur dioxide?

The conductivitimetry method, involves bubbling sulphur dioxide through a solution containing sulphuric acid and which of the following?

In West-Gaeke colourimetric procedure, the intensity of the red purple colour is measured photometically and it is proportional to the concentration of sulphur dioxide. What is the red purple coloured compound?

SENSITIVITY_TO_TOTAL_SULPHUR_BY_FLAME-PHOTOMETRIC_DETECTOR_IS_WHICH_OF_THE_FOLLOWING_LEVELS??$

Which of the following is the wavelength of the radiation generated when an air stream containing sulphur di-oxide is burned in a hydrogen-rich flame?$

Which_of_the_following_methods_are_not_used_for_the_measurement_of_sulphur_di-oxide?$

The response of coulometric method is instantaneous.

In conductivitimetric method, to measure the conductivity of the cell, 5V ___________ is applied across the electrodes.

In conductivitimetric method, the concentration of sulphur di-oxide is proportional to which of the following parameters of the saw-tooth waveform?

Which of the following is the detection limit of coulometric method used for measurement of sulphur di-oxide?

Which of the following materials are used as electrodes in coulometric method for the measurement of sulphur di-oxide?

The ability of sulphur dioxide to reduce iodine is used in which of the following methods?

Which of the following is not true about using gas chromatography for measuring pollutants in air?

Which of the following are not the characteristics of conductivitimetry method used to measure sulphur di-oxide?

The conductivitimetry method, involves bubbling sulphur di-oxide through a solution containing sulphuric acid and which of the following?

In West-Gaeke colourimetric procedure, the intensity of the red purple colour is measured photometically and it is proportional to the concentration of sulphur di-oxide. What is the red purple coloured compound?