Which of the following analyzers are used to measure trace amounts of nitrogen oxides in the stratosphere?

Laser opto-acoustic spectroscopy

Which of the following detectors are generally used for detection in NO analysis using CO laser?

Liquid nitrogen cooled Ge-Au element

Explore topic-wise MCQs in Analytical Instrumentation.

This section includes 4 Mcqs, each offering curated multiple-choice questions to sharpen your Analytical Instrumentation knowledge and support exam preparation. Choose a topic below to get started.

1.	To monitor oxides of nitrogen in stack effluents, the sample containing oxides of nitrogen is passed through a flask containing solution of H₂O₂ in sulphuric acid. Nitric acid is formed. The nitrate ions then react with phenol-disulphonic acid to produce blue colour. a)True
A.	False
Answer» C.

Discussion

2.	A pink coloured dye complex is formed when air containing NO2 is passed in an absorbing solution consisting of __________ and diamine dissolved in the acetic acid medium.
A.	Sulphuric acid
B.	Sulphonyl
C.	Sulphonic acid
D.	Sulphanilic acid
Answer» E.

Discussion

3.	Which of the following analyzers are used to measure trace amounts of nitrogen oxides in the stratosphere?
A.	Chemiluminescence
B.	CO laser method
C.	Laser opto-acoustic spectroscopy
D.	Colorimetry
Answer» D. Colorimetry

Discussion

4.	Which of the following detectors are generally used for detection in NO analysis using CO laser?
A.	Photomultiplier tube
B.	Photovoltaic cell
C.	Liquid nitrogen cooled Ge-Au element
D.	Photo emissive tube
Answer» D. Photo emissive tube

Discussion

Explore topic-wise MCQs in Analytical Instrumentation.

To monitor oxides of nitrogen in stack effluents, the sample containing oxides of nitrogen is passed through a flask containing solution of H2O2 in sulphuric acid. Nitric acid is formed. The nitrate ions then react with phenol-disulphonic acid to produce blue colour.a)True

A pink coloured dye complex is formed when air containing NO2 is passed in an absorbing solution consisting of __________ and diamine dissolved in the acetic acid medium.

Which of the following analyzers are used to measure trace amounts of nitrogen oxides in the stratosphere?

Which of the following detectors are generally used for detection in NO analysis using CO laser?

To monitor oxides of nitrogen in stack effluents, the sample containing oxides of nitrogen is passed through a flask containing solution of H₂O₂ in sulphuric acid. Nitric acid is formed. The nitrate ions then react with phenol-disulphonic acid to produce blue colour.
a)True