Colorimetry and Spectrometry MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Colorimetry and Spectrometry, 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 Colorimetry and Spectrometry 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 Colorimetry and Spectrometry mcq questions that explore various aspects of Colorimetry and Spectrometry problems. Each MCQ is crafted to challenge your understanding of Colorimetry and Spectrometry 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 Colorimetry and Spectrometry 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 Colorimetry and Spectrometry. 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 Colorimetry and Spectrometry knowledge to the test? Let's get started with our carefully curated MCQs!

Colorimetry and Spectrometry MCQs | Page 6 of 10

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Q51.
Which of the following is not a technique for preparing solid samples in IR spectroscopy?

a.

Solids run in solution

b.

Mull technique

c.

Solid films

d.

Thin films

Discuss
Answer: (d).Thin films
Q52.
Which of the following is not used as pyroelectric material used in pyroelectric transducers in Infrared spectroscopy?

a.

Triglycine Sulphate

b.

Deutrated Triglycine Sulphate

c.

Some Polymers

d.

Tetraglycine sulphate

Discuss
Answer: (d).Tetraglycine sulphate
Q53.
Which of the following is the principle of Golay cell which is used as a detector in IR spectroscopy?

a.

Expansion of gas upon heating

b.

Increase in resistance due to an increase in temperature and vice versa

c.

Temperature difference gives rise to a potential difference in the material

d.

Decrease in resistance due to an increase in temperature

Discuss
Answer: (a).Expansion of gas upon heating
Q54.
In a solid sample treatment technique, the finely ground solid sample is mixed with mineral oil to make a thick paste which is then spread between IR transmitting windows. What is the name of this solid sample treatment technique?

a.

Pressed pellet

b.

Mull technique

c.

Solid films

d.

Solids run in solution

Discuss
Answer: (b).Mull technique
Q55.
Which of the following is not true about Fourier Transform Infrared (FTIR) spectrometer?

a.

It is of non-dispersive type

b.

It is useful where repetitive analysis is required

c.

Size has been reduced over the years

d.

Size has increased over the years

Discuss
Answer: (d).Size has increased over the years
Q56.
In the most widely used beam splitter, a thin film of ________ is sandwiched between two plates of low refractive index solid. Fill the blank with a suitable option.

a.

Mylar

b.

Silicon carbide

c.

Ferrous oxide

d.

Silver chloride

Discuss
Answer: (a).Mylar
Q57.
Which of the following is not the function of the drive mechanism in Fourier Transform Infrared Spectrophotometer?

a.

Movement of mirror to obtain a satisfactory interferogram

b.

Acquire a good interferogram pattern

c.

Allow 50% of the beam to pass

d.

Keep the speed of the moving mirror constant

Discuss
Answer: (c).Allow 50% of the beam to pass
Q58.
Only pyroelectric transducer or pyroelectric crystals are used as detectors in Fourier Transform Infrared Spectrophotometer (FTIR). What is the main reason for other types of thermal detectors are not being used in FTIR spectrophotometer?

a.

Less accuracy

b.

Slower response

c.

Less precision

d.

Less sensitivity

Discuss
Answer: (b).Slower response
Q59.
Which of the following is not the advantage of Fourier Transform Spectrometers?

a.

Signal to noise ratio is high

b.

Information could be obtained on all frequencies

c.

Retrieval of data is possible

d.

Easy to maintain

Discuss
Answer: (d).Easy to maintain
Q60.
Which of the following has to be computed to determine transmittance and absorbance at various frequencies?

a.

Ratio of signal and noise

b.

Ratio of sample and reference spectra

c.

Sample spectra

d.

Reference spectra

Discuss
Answer: (b).Ratio of sample and reference spectra
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