CHE301 QUIZ 1 SOLVED
1. Potassium gives ____ flame color in flame photometry.
a) Lime green
b) Yellow
c) Red
d) Violet
2. If lots of variability found in a particular sampling then we need a ___ sampling.
a) Variant
b) Grab
c) Composite
d) Specific
3. Error-free data is called ___.
a) Accurate
b) Random
c) Collective
d) Clear
4. Chemical analysis includes any aspect of the chemical characterization of a ___ material.
a) Proposed
b) Conserved
c) Random
d) Sample
5. Barium gives ___ flames color in flame photometry.
a) Lime green
b) Red
c) Yellow
d) Violet
Important Check Also:
6. In Beer lambert’s law, I represents ___.
a) Incident light
b) Path length
c) Both a and b
d) Transmittance light
7. To separate liquid or solid sample between two immiscible liquids is called ___.
a) Sublimation
b) Chromatography
c) Filtration
d) Solvent extraction
8. Lithium gives ___ flame color in flame photometry.
a) Red
b) Lime green
c) Violet
d) Yellow
9. Sublimation is used to separate solid from ___?
a) gas
b) semi-solid
c) solids
d) liquid
10. An ___ component (in clinical chemistry) or chemical species, is a substance or chemical constituent that is of interest in an analytical procedure.
a) Matrix
b) Compound
c) Analyte
d) Sample
11. ___ is used to separate soluble solid from liquid sample.
a) Solid-phase extraction
b) Sublimation
c) Filtration
d) Solvent extraction
12. In rounding a number ending in 5, always around so that the result ends with an ___ number.
a) odd
b) decreased
c) zero
d) Even
13. A check sheet is important in performing?
a) Stratification
b) Calibration
c) rounding off data
d) result calculation
14. ____ is basic instrument found in food and drug analysis laboratories.
a) Chromatography
b) UV Spectroscopy
c) Solvent Extraction
d) IR Spectroscopy
15. The Lifeline of a heart patient as appeared in ECG is random movement. The linearity means?
a) Survival
b) Heart attack
c) Death
d) Cancer
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