Analytical chemistry unit-1 MCQ M.Sc. Chemistry First year first sem

 M. Sc. First year Postgraduate degree course

First Semester

CHE - 101

ANALYTICAL CHEMISTRY

Unit- 1. Basic concepts of Analytical Chemistry

The nature of analytical chemistry, the role of analytical chemistry, qualitative and quantitative analytical methods, a typical quantitative analysis - sampling and treatment of samples, validation of a method.

Multiple Choice questions:

1. Identify one which does not come under the Chemical methods of qualitative analysis?
a)  Gravimetric
b) Titrimetric
c)  Volumetric
d) Magnetic Susceptibility

2. Select the inappropriate statement regarding quantitative analysis
a)  It helps in determining the outcome of the product
b) It helps in determining the impurities in the sample
c) It fails to indicate the presence of lead in some compound
d) It could identify the amounts of dosage present in the drug

3. Identify the test which is not a part of qualitative analysis?
a) Litmus test
b) Castle-Meyer test
c)  Iodine test
d) Flame test

4. Analyses in which substances are identified or classified on the basis of their chemical or physical properties called as
a) Qualitative analysis
b) Quantitative analysis
c)  Both a and b
d) None of these

5. Testing used for finding out which functional group present in the compound called as                                
a) Qualitative analysis
b) Quantitative analysis
c)  Both a and b
d) None of these

6. The constituents those present in amounts between 100 ppm (0.01%) and 1 ppb are called
a)  major constituents
b) minor constituents
c) Trace constituents.
d) Ultra trace constituents.

7. The constituents those present in the range of 1 to 100% by mass of sample are called as
a) major constituents
b) minor constituents
c)  Trace constituents.
d) Ultra trace constituents

8. The process by which a representative fraction is acquired from a material of interest is termed as…
a)  Titration
b) Calibration
c) Sampling
d) None of these

9. for laboratory analysis, the gross sample is usually reduced in size and homogenized to create the…..
a)  Sampling unit
b) Gross sample
c) Laboratory sample
d) All of these

10. Systematic errors can be eliminated by……..
a)  Exercizing care
b) By calibration
c)  By the proper use of standards, blanks, and reference materials.
d) All of these

11. Well-mixed solutions of liquids and gases require…..
a)  More sample
b) Fewer samples
c)  Small sample
d) Both b and c

12. In a titration, the analyte reacts with a….
a) Standardized reagent called as titrant.
b) Standardized reagents called calibrant.
c)  Reactants.
d) Products.

13. To avoid systematic errors in calibration….
a)  Standards must be accurately prepared
b) Chemical state of standards must be identical
c) Both a and b 

 d) None of these

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