Chromatography MCQs

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

Chromatography MCQs | Page 5 of 14

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Q41.
Which of the following is the expression for Eddy diffusion in the column, if ‘γ’ represents obstruction factor, ‘dₚ’ represents particle diameter, ‘Dₘ’ represents Solute diffusion co-efficient and ‘λ’ represents function for packing uniformity?

a.

λ dₘ

b.

2 γ Dₘ

c.

Dₘ γ

d.

λ/dₘ

Discuss
Answer: (a).λ dₘ
Q42.
Which of the following is the expression for longitudinal diffusion in the column, if ‘γ’ represents obstruction factor, ‘dₘ’ represents particle diameter, ‘Dₘ’ represents Solute diffusion co-efficient and ‘λ’ represents function for packing uniformity?

a.

λ dₘ

b.

2 γ Dₘ

c.

Dₘ γ

d.

λ/dₘ

Discuss
Answer: (b).2 γ Dₘ
Q43.
In gas-liquid chromatography, when films are used in the interior of the capillary column, then what is the value of Eddy diffusion?

a.

Greater than 1

b.

Less than 1

c.

Zero

d.

Less than zero

Discuss
Answer: (c).Zero
Q44.
For an unpacked coated capillary column, the obstruction factor takes which of the following values?

a.

0

b.

0.6

c.

1

d.

1.6

Discuss
Answer: (c).1
Q45.
Base line resolution is achieved when degree of resolution/separation is ______

a.

1

b.

0

c.

0.5

d.

1.5

Discuss
Answer: (d).1.5
Q46.
Which of the following equations give the expression for plate number, N when ‘tR’ is the adjusted retention time and ‘Wb’ is the width at the base of the peak which is equal to 4 standard deviations.

a.

16 tR²/Wb

b.

4 tR²/Wb

c.

(4tR/Wb)²

d.

4 (tR/Wb)²

Discuss
Answer: (c).(4tR/Wb)²
Q47.
It is more difficult to measure the width at half peak height than the base width in the detector output.

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (b).False
Q48.
The solute, while moving in the column is always in equilibrium with both the stationary phase and the mobile phase.

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (a).True
Q49.
For the separation of which of the following substances, Gas-solid chromatography is being used?

a.

Thermally stable organic components

b.

Volatile organic components

c.

Thermally stable inorganic components

d.

Low molecular weight gaseous species

Discuss
Answer: (d).Low molecular weight gaseous species
Q50.
Which of the following is not a feature of carrier gas used in gas chromatography?

a.

It must be chemically inert

b.

It should be suitable for the detector employed

c.

It should not be completely pure

d.

It should be cheap

Discuss
Answer: (c).It should not be completely pure
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