CHEM LAB
Chemical Analysis Quiz
Test your knowledge in chemical analysis with our comprehensive quiz designed for chemistry enthusiasts and students alike. This quiz covers a variety of topics, ranging from titration methods to the interpretation of experimental results.
Key Features:
- 30 multiple-choice questions
- Covers laboratory experiments and analytical techniques
- Enhance your understanding of chemistry concepts
What is used to determine the unknown concentration of an analyte?
Analyte
Titration
Titrant
Standardization
No correct answer
It is the process of determining the exact concentration of a solution.
Analyte
Titration
Titrant
Standardization
No correct answer
It is needed in the process of standardization.
Analyte
Titrant
Primary Standard
Secondary Standard
No correct answer
It is the solution in which the concentration of a solute is precisely known.
Analyte
Titration
Titrant
Standardization
No correct answer
What is the endpoint of Experiment 10?
Baby pink
Light orange
Red
Colorless
No correct answer
What is the endpoint of Experiment 11?
Baby pink
Light orange
Red
Colorless
No correct answer
What is the endpoint of Experiment 12?
Baby pink
Light orange
Red
Colorless
No correct answer
The color that indicates over titration in Experiment 12
Baby pink
Light orange
Red
Colorless
No correct answer
It is the quantitave analysis of inorganic acids and bases.
Neutralization titrimetry
Gravimetry
Potentiometric determination
Double indicator method
No correct answer
It is used to determine the components of a base mixture, which is titrated with standard HCl solution.
Neutralization titrimetry
Gravimetry
Potentiometric determination
Double indicator method
No correct answer
What indicator is used to achieve the first endpoint in Experiment 13?
Methyl orange
Phenolphthalein
Eriochrome Black T
Starch
No correct answer
What indicator is used to achieve the second endpoint in Experiment 13?
Methyl orange
Phenolphthalein
Eriochrome Black T
Starch
No correct answer
What color is the first endpoint in Experiment 13?
Baby pink
Light orange
Red
Colorless
No correct answer
What color is the second endpoint in Experiment 13?
Baby pink
Light orange
Red
Colorless
No correct answer
What method is used to determine the chloride content of seawater?
Fajans mathod
Mohr method
Perganimetry
Volhard method
No correct answer
What's precipitating agent in Experiment 15?
Silver nitrite
Silver nitrate
Silver nitrete
Silver
No correct answer
It is used when the sources of alkalinity are limited to OH, HCO3, and CO3
Neutralization titrimetry
Gravimetry
Potentiometric titration
Double indicator method
No correct answer
It provides more reliable data than data from titrations that use chemical indicators.
Neutralization titrimetry
Gravimetry
Potentiometric titration
Double indicator method
No correct answer
All is correct except:
Endpoint in Exp. 12 = Light orange
Endpoint in Exp. 10 = Baby pink
Indicator in Exp. 16 = Eriochrome Black T
Indicator in Exp. 11 = Phenolphthalein
No correct answer
What color doesn't the solution turn into in Experiment 16 and 17?
Red
Purple
Blue
Colorless
No correct answer
It is used for determination of a mixture of different metal ions in solution.
Chelatometry
Iodimetry
Iodometry
Permanganimetry
No correct answer
Less than 60ppm CaCO3 means
Very hard water
Hard water
Soft water
Moderately hard water
No correct answer
What are the principal components primarily responsible for water hardness?
Ca2+ and Mg2-
Mg2+ and Ca2+
Ca2- and Mg2-
Mg2- and Ca2-
No correct answer
What does EDTA mean?
Ethylenediamenetetraacetic acid
Ethylynediaminetetraacetic acid
Ethylenediamynetetraacetic acid
Ethylenediaminetetraacetic acid
No correct answer
What color does the chromate indicator initially gives?
Wine-red
Light orange
Lemon-yellow
Clear blue
No correct answer
What is the titrant in Experiment 10?
NaOH
HCl
EDTA
Na2S2O3
AgNO3
No correct answer
What is the titrant in Experiment 21?
NaOH
HCl
EDTA
Na2S2O3
AgNO3
No correct answer
What is the titrant in Experiment 15?
NaOH
HCl
EDTA
Na2S2O3
AgNO3
No correct answer
It involves adding an excess iodide ion to an oxidizing agent, producing iodine, which is then titrated with standard thosulfate solution.
Iodometry
Iodimetry
Iodymetry
Iodemetry
No correct answer
Which reagent is NOT used in Experiment 21?
Winkler solution
H2SO4
MnSO4.4H2O
Na2S2O3.5H2O
No correct answer
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