Chemical Technology MCQs

Chemical Technology MCQs

Let’s see some important questions answers on Chromatography and Vibrational Spectroscopy.

Which of the following is the eluant filled in the closed jar?

(A).  Mixture of liquids

(B).  Mixture of gases

(C). Both of A and B

(D).  Mixture of a gas  and a liquid

(E). None of these

Multiple Choice Question Answer:  a

In terms of which one the relative adsorption of each component of the mixture is expressed?

(A).  Acceleration factor

(B). Both of these

(C).  acceleration and retardation factor

(D). None of these

(E).  Retardation factor

Multiple Choice Question Answer:  e

Which of the following is the size of a thin layer of adsorbent?

(A).  0.6 mm

(B).  0.8 mm

(C).  0.5 mm

(D).  0.2 mm

(E). None of these

Multiple Choice Question Answer:  d

A chromaplate or thin layer chromatography plate is made up of which one?

(A).  Metal

(B).  Wood

(C).  Glass

(D).  Fibre

(E). None of these

Multiple Choice Question Answer:  c

On continuous differential partitioning of components of a mixture between stationary and mobile phases paper chromatography is based.

(A).  True

(B).  False

(E). None of these

Multiple Choice Question Answer:  a

In the spectral range of which one vibrational spectroscopy involves the transitions falling?

(A).  400-4000 cm-1

(B).  300-3000 cm-1

(C).  500-5000 cm-1   

(D).  100-1000 cm-1

(E). None of these

Multiple Choice Question Answer:  a

In detecting the presence of hydrogen bonding iR spectroscopy helps.

(A).  True

(B).  False

(E). None of these

Multiple Choice Question Answer: a

The principle on which thin layer chromatography is based on which one?

(A).  on an absorbent, to different degrees, different compounds are absorbed

(B).  on an adsorbent, to different degrees, different compounds are absorbed

(E). None of these

Multiple Choice Question Answer:  b

_____cannot show a vibrational absorption spectrum.

(A).  OCS

(B).  H2O

(C).  CO2

(D). C H2 = C H2

(E). None of these

Multiple Choice Question Answer:  d

Which of the following is the correct statement?

(A).  the quality of a sample it can also determine

(B).  in a mixture it can determine the amount of components

(C).  All of these

(D).  the unknown materials infrared spectra can identify

(E). None of these

Multiple Choice Question Answer:  c

The retardation factor is the ratio of which one?

(A).  from top line to distance moved by the solvent from top-line distance moved by substance

(B).  from base line to distance moved by the substance from base line distance moved by solvent

(C ). None of these

(D).  from the top line to distance moved by the substance from top-line distance moved by solvent

(E).  from base line to distance moved by the solvent from base line distance moved by substance

Multiple Choice Question Answer:  e

With ninhydrin solution is an example of which one amino acid was detected by spraying the plate?

(A).  Paper chromatography

(B).  Column chromatography

(C).  Thin layer chromatography

(D).  Liquid chromatography

(E). None of these

Multiple Choice Question Answer:  a

________ region of IR spectra appears between (1400-600) cm-1.

(A).  Functional group region

(B).  Low-frequency region

(C).  None of these

(D).  Fingerprint region

(E). None of these

Multiple Choice Question Answer:  d

Which one is incorrect?

(A). None of these

(B).  in paper chromatography special quality paper is used

(C).  which acts as stationary phase chromatography paper contains water trapped in it

(D).  Paper chromatography is the kind of partition chromatography

(E).  All of these

Multiple Choice Question Answer:  e

________ molecule have infrared active vibrations.

(A).  NO

(B).  CH4

(C ).  H2 

(D).  All of these

(E). None of these

Multiple Choice Question Answer:  a

In a compound can be established by using which one, Presence of a functional group?

(A).  IR spectroscopy

(B).  Mass spectroscopy

(C).  Chromatography

(D).  X-ray diffraction

(E). None of these

Multiple Choice Question Answer:  a

______ is the absorption frequency(cm-1) of –C=N functional group.

(A).  2850-2960

(B).  1690-1760

(C).  3610-3640

(D).  1180-1360

(E). None of these

Multiple Choice Question Answer:  d

______is not a type of bending molecular vibration.

(A).  Twisting

(B).  Stretching

(C).  Wagging

(D).  Rocking

(E). None of these

Multiple Choice Question Answer:  b

Engineering Chemistry MCQs

Solved MCQs of engineering Chemistry.

  1. Engineering Chemistry Important MCQs
  2. Adsorption Isotherm MCQs | Chemistry
  3. Biodegradable Polymers MCQs
  4. Chromatography MCQs  
  5. Polymer MCQs
  6. Chirality MCQs
  7. Conductivity and Conformations MCQs
  8. Crystallization and Dendrimers MCQs
  9. Distillation and Effect of Temperature on reaction rate
  10. Elastomers MCQs
  11. Electromeric Effect and Electronic Spectroscopy MCQs
  12. Electrophilic Substitution Reaction MCQs
  13. Engineering Materials and Fibers MCQs
  14. Fission of Covalent Bond MCQs
  15. Fractional Distillation MCQs
  16. Gibb’s Phase Rule Solved MCQs
  17. Hybridization, Homonuclear and Heteronuclear Molecules MCQs | Chemical Engineering MCQs
  18. Hyperconjugation and Inductive Effect MCQs
  19. Chemical Reactions MCQs
  20. Intermolecular Forces and Melting Point MCQs
  21. Laws of Photochemistry and Mesomeric Effect MCQs
  22. Micelles and Molecular Aggregation MCQs Questions Answers
  23. Molecular Spectroscopy and Molecularity of a Reaction MCQs
  24. Nuclear Magnetic Resonance and Components MCQs Questions Answers
  25. Nucleophilic Substitution Reaction MCQs
  26. Optical Isomerism and Order of a Reaction MCQs
  27. Organic Conducting Polymers and Origin of spectrum MCQs
  28. Particle Size Measurement and Pseudo Order Reaction MCQs
  29. Phases and Components MCQs
  30. Photochemical Reactions and Photosynthesis MCQs
  31. Polymerization, Polymer Blends, and Polymeric Composites MCQs
  32. Quantum MCQs
  33. Silicones and Polymeric Composites and R, S- Configuration and Water Softening MCQs
  34. Stereoselectivity, Stereospecificity and Stereo Structure of Polymers MCQs
  35. Steam Distillation and Surface Tension MCQs
  36. Thermoplastic Polymers MCQs
  37. Chromatography and Vibrational Spectroscopy MCQs
  38. Valence Bond Theory and Two-Component System MCQs

 

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