QUIZ: Fundamentals of Analytical Methods

Created by

kanwar

Fundamentals of Analytical Methods

Welcome to this comprehensive MCQ quiz designed to test your understanding of the fundamental principles of analytical methods. This quiz covers a wide range of techniques, including titrimetry, gravimetry, bomb calorimetry, chromatography , flame photometry, spectrophotometry, electrophoresis, XRF, XRD, NMR, FTIR, GC-MS, SEM, and TEM.

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1. X-ray fluorescence (XRF) is best suited for the analysis of:

A. Light elements (e.g., H, C, O)

B. Heavy elements (e.g., Pb, Au, Hg)

C. All elements equally

D. Organic compounds

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2. Which of the following is NOT a type of chromatography?

A. Ion exchange chromatography

B. Affinity chromatography

C. Size exclusion chromatography

D. Combustion chromatography

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3. X-ray diffraction (XRD) provides information about:

A. Elemental composition

B. Crystal structure

C. Molecular weight

D. Chemical bonding

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4. The Karl Fischer titration is specifically used for the determination of:

A. Moisture content

B. Acidity

C. Alkalinity

D. Iodine number

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5. Transmission electron microscopy (TEM) is capable of:

A. Imaging at atomic resolution

B. Analyzing volatile compounds

C. Determining elemental composition

D. Measuring surface roughness

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6. Fourier transform infrared (FTIR) spectroscopy is primarily used to identify:

A. Functional groups in organic molecules

B. Isotopes of elements

C. Crystal defects

D. Heavy metals

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7. In paper chromatography, the stationary phase is:

A. Cellulose

B. Silica gel

C. Alumina

D. A liquid solvent

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8. Scanning electron microscopy (SEM) provides information on:

A. Surface morphology and topography

B. Bulk elemental composition

C. Crystal structure

D. Molecular weight

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9. Thin layer chromatography (TLC) is advantageous over paper chromatography due to:

A. Faster separation

B. Higher resolution

C. Ability to use corrosive reagents

D. All of the above

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10. High-performance liquid chromatography (HPLC) offers the following advantage over GC:

A. Ability to analyze non-volatile compounds

B. Lower operating temperatures

C. Higher resolution for certain compounds

D. All of the above

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11. Nuclear magnetic resonance (NMR) spectroscopy is invaluable for determining:

A. Molecular structure and connectivity

B. Elemental composition

C. Crystal structure

D. Optical activity

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12. Gas chromatography-mass spectrometry (GC-MS) combines the advantages of:

A. Separation and identification

B. Quantitation and structural determination

C. Sensitivity and selectivity

D. All of the above

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13. The technique most suitable for the analysis of complex mixtures of proteins is:

A. GC

B. HPLC

C. Electrophoresis

D. Flame photometry

14 / 25

14. The Kjeldahl method is used to determine:

A. Nitrogen content

B. Sulfur content

C. Halogen content

D. Ash content

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15. Which of the following techniques does NOT involve the use of X-rays?

A. XRF

B. XRD

C. SEM

D. NMR

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16. Bomb calorimetry is primarily used to determine:

A. Heat of combustion

B. Heat of formation

C. Heat of solution

D. Heat of vaporization

17 / 25

17. Atomic absorption spectroscopy (AAS) is a powerful technique for:

A. Multi-element analysis

B. Structural determination of organic compounds

C. Trace metal analysis

D. Qualitative analysis of mixtures

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18. Inductively coupled plasma (ICP) techniques offer the following advantages:

A. High sensitivity

B. Wide linear dynamic range

C. Ability to analyze multiple elements simultaneously

D. All of the above

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19. In UV-Vis spectrophotometry, the Beer-Lambert law relates absorbance to:

A. Concentration and path length

B. Wavelength and temperature

C. Molar absorptivity and pH

D. Molecular weight and concentration

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20. Gravimetric analysis relies on the measurement of:

A. Volume of a solution

B. Intensity of light absorption

C. Mass of a precipitate

D. Temperature change

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21. The primary factor affecting separation in electrophoresis is:

A. Molecular weight

B. Charge-to-mass ratio

C. Solubility

D. Volatility

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22. Flame photometry is most suitable for the quantitative determination of:

A. Alkali and alkaline earth metals

B. Transition metals

C. Halogens

D. Organic compounds

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23. In titrimetry, the equivalence point is best determined by:

A. Visual indicator change

B. pH meter

C. Conductivity meter

D. Any of the above, depending on the titration type

24 / 25

24. Gas chromatography (GC) separates components based on their:

A. Molecular weight

B. Volatility and interaction with the stationary phase

C. Solubility in the mobile phase

D. Electrical charge

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25. Which technique is most suitable for determining the isotopic composition of a sample?

A. NMR

B. FTIR

C. ICP-MS

D. AAS

Your score is

The average score is 62%

Author

kanwar

Kanwar Bhan Godara UGC NET JRF Environmental Science
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