Pollution Monitoring Instruments MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Pollution Monitoring Instruments, a fundamental topic in the field of Analytical Instrumentation. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Pollution Monitoring Instruments MCQs are designed to help you grasp the core concepts and excel in solving problems.

In this section, you'll find a wide range of Pollution Monitoring Instruments mcq questions that explore various aspects of Pollution Monitoring Instruments problems. Each MCQ is crafted to challenge your understanding of Pollution Monitoring Instruments principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Analytical Instrumentation tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Pollution Monitoring Instruments MCQs are your pathway to success in mastering this essential Analytical Instrumentation topic.

Note: Each of the following question comes with multiple answer choices. Select the most appropriate option and test your understanding of Pollution Monitoring Instruments. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

So, are you ready to put your Pollution Monitoring Instruments knowledge to the test? Let's get started with our carefully curated MCQs!

Pollution Monitoring Instruments MCQs | Page 2 of 5

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Q11.
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

Discuss
Answer: (b).394 nm
Q12.
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

Discuss
Answer: (c).Slope
Q13.
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

Discuss
Answer: (b).AC
Q14.
The response of coulometric method is instantaneous.

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (b).False
Q15.
In Saltzman method, which of the following are formed when air containing NO₂ is passed in an absorbing solution consisting of the sulphanilic acid and diamine dissolved in the acetic acid medium?

a.

Blue colour dye complex

b.

Green colour dye complex

c.

Pink colour dye complex

d.

Orange colour dye complex

Discuss
Answer: (c).Pink colour dye complex
Q16.
NO can be analysed by converting it into NO₂ and passing it through potassium permanganate. Which of the following is the main disadvantage of this method?

a.

Less accuracy

b.

Dye formed is unstable

c.

Dye formed is colourless

d.

Quantity of dye is low

Discuss
Answer: (b).Dye formed is unstable
Q17.
In Jacob-Hochheiser method, NO₂ is passed through a dilute solution of sodium hydroxide forming the nitrite ion. The nitrite ion is reacted with sulphanilamide and ethylene diamine in which of the following to form the highly coloured azo dye?

a.

Sulphuric acid

b.

Hydrochloric acid

c.

Nitric acid

d.

Phosphoric acid

Discuss
Answer: (d).Phosphoric acid
Q18.
Which of the following methods results in the formation of yellow coloured compound?

a.

Griess-Saltzman method

b.

Phenoldisul phonoic acid method

c.

Chemiluminescence method

d.

West-Gaeke method

Discuss
Answer: (b).Phenoldisul phonoic acid method
Q19.
Which of the following is the most common application of Chemiluminescence method used for the analysis of Nitrogen oxides?

a.

In medical applications

b.

In automotive exhaust gases

c.

In manufacturing processes

d.

In chemical industries

Discuss
Answer: (b).In automotive exhaust gases
Q20.
Which of the following is the wavelength at which CO laser operates?

a.

1.005 µm

b.

5.307 µm

c.

4.952 µm

d.

6.179 µm

Discuss
Answer: (b).5.307 µm
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