Analytical Chemistry Mcqs
Analytical Chemistry Mcqs
Analytical Chemistry Mcqs
Semester : 5th
Department : Chemistry
2. When the component has a small value of K, it is supposed to have an affinity for:
a) Mobile phase
b) No phase
c) Stationary phase
d) Whole solution
Answer: c
Explanation: The component has a small value of K, it is supposed to have an affinity for
stationary phase.
Answer: a
Explanation: Since ether is a non-polar compound, its layer is used to separate
organic impurities.
Answer: b
Explanation: A mobile phase has to flow and hence it should not be a solid.
5. What is the representation of distribution coefficient?
a) S
b) H
c) G
d) K
Answer: d
Explanation: The distribution coefficient is denoted by K.
Answer: c
Explanation: The colour after extracting iodine is purple.
Answer: c
Explanation: The dispersed phase is also called as dis-continuous phase, the other phase
being continuous phase.
Answer: a
Explanation” In mixer settlers, two liquid phases mixed with impellers and separated by
gravity induced separation.
Answer: c
Explanation: If the agitation is very intense, then the size of particles can reduce to 1 to 1.5
micrometers. Thus there could be emulsification, and it is problematic.
Answer: a
Answer: b
Answer: D
15. Solvent extraction method is particularly useful technique for separation when the product to be
separated is:
A. Non volatile and thermally unstable
B. Volatile and thermally stable
C. Non volatile and thermally stable
D. Non volatile and thermally unstable
Answer: B
a) Adsorption
b) Absorption
c) Distribution of solute into two liquids
d) partition
Answer: c
a) Partition Coefficient
b) Distribution Ratio
c) Distribution Coefficient
Answer: b
a) Solid-liquid
b) Liquid-liquid
c) solid-solid
d) Liquid-Gas
Answer: b
a) Order
b) Texture
c) Solubilities
d) Colour
Answer: c
20. Usually one of the solvents used in solvent extraction process is ______.
a) Glue
b) Viscous
c) Inorganic
d) Orgainc
Answer: d
21. Solvent extraction is more effective when extraction is repeated with ____
a) Small solvent
b) Large Solvent
c) Extra solvent
Answer: a
a) Fibers
b) Organic Impurities
c) Gases
d) Inorgainc Impurities
Answer: b
23. When components have small value of K,it is supposed to have an affinity for_____
a) Stationary Phase
b) Mobile Phase
c) No Phase
Answer: a
24. Which is the simple and oldest technique for solvent extraction:
a) Packed Column
b) Spray Column
c) Plate Column
a) RF factor
b) Separating Factor
c) Mixing Factor
Answer: b