Quality Control (BLUE) Exam
Questions with 100% Verified
Answers
What is preferred for standardization of permanganate?
A. Sodium oxalate C. Hydrogen peroxide
B. Sodium carbonate D. Sodium nitrate - ✔ ✔ A
Instability will be accelerated by:
A. Temperature C. Light
B. Heat D. All of the above - ✔ ✔ D
Assay of NaCl in table salt by precipitation as AgCl, filtration, drying, and weighing
the residue
is classified as:
A. Precipitimetry C. Gravimetric analysis
B. Volhard method D. Residual precipitimetry - ✔ ✔ C
An analyst who determines the strength, potency, and percentage purity of a drug
or
,pharmaceutical product is performing:
A. Pharmaceutical assaying C. Pharmacopeial
test B. Identification test D. Special test - ✔ ✔ A
Type of alkaloidal assay where the total alkaloids are determined.
A. Ultimate C. Extraction
B. Specific D. Proximate - ✔ ✔ D
The measurement of a base of a given sample by titration with a standard acid is
known as:
A. Acidimetry C. Alkalimetry
B. Compleximetry D. Redox - ✔ ✔ A
Which of the following substance is assayed by residual alkalimetric
analysis. A. Aspirin C. Hydrochloric acid
B. Sodium hydroxide D. Zinc oxide - ✔ ✔ A
The molecular weight of NaOH is 40. How many grams of NaOH pellets
are needed to make
500mL of 1.5 N solution?
A. 20 C. 40
B. 30 D. 60 - ✔ ✔ B
Which of the following is the most effective chemical substance in removing
stains of
,potassium permanganate?
A. Oxalic acid C. Chalk
B. Sodium thiosulfate D. Vinegar - ✔ ✔ A
Which of the following indicators is the least used for acid-base
titration? A. Methyl Orange C. Ferric Alum
B. Phenolpthalein D. Methyl Red - ✔ ✔ C
Residual method titration with EDTA is applicable to what metal ion?
A. Calcium C. Zinc
B. Aluminum D. Magnesium - ✔ ✔ B
Chemical reactions that involves a change in the valence number of reacting
substances.
A. Neutralization C. Oxidation-Reduction
B. Complexation D. Precipitation - ✔ ✔ C
A process wherein the sample is made to liberate iodine, which is then
titrated with a standard
solution of sodium thiosulfate.
A. Volumetric titration C. Iodometry
B. Back titration D. Iodimetry - ✔ ✔ C
Malic acid represent in cherry juice may be determined by:
A. Indirect Permanganate oxidation Method
, B. Direct Permanganate Oxidation
Method C. Alkalimetry - ✔ ✔ A
Iodometry is an indirect analysis of:
A. Oxidizing agents C. Acids
B. Reducing agents D. Bases - ✔ ✔ A
The chemical factor used in calculation of percent purity of a substance in
volumetric analysis.
A. mEq weight C. Molality
B. Molarity D. None of the above - ✔ ✔ A
Adsorption indicators are used in:
A. Complexity C. Volumetric Precipitation
B. Acidimetry D. Alkalimetry - ✔ ✔ C
The indicator used in permanganate titration:
A. Methyl Orange C. Permanganate solution
B. Phenolpthalein D. Methyl Red - ✔ ✔ C
The indicator for EDTA direct titration of calcium carbonate:
A. Thymol blue C. Methyl red
B. Hydroxynapthol blue D. Methylene blue - ✔ ✔ B
Questions with 100% Verified
Answers
What is preferred for standardization of permanganate?
A. Sodium oxalate C. Hydrogen peroxide
B. Sodium carbonate D. Sodium nitrate - ✔ ✔ A
Instability will be accelerated by:
A. Temperature C. Light
B. Heat D. All of the above - ✔ ✔ D
Assay of NaCl in table salt by precipitation as AgCl, filtration, drying, and weighing
the residue
is classified as:
A. Precipitimetry C. Gravimetric analysis
B. Volhard method D. Residual precipitimetry - ✔ ✔ C
An analyst who determines the strength, potency, and percentage purity of a drug
or
,pharmaceutical product is performing:
A. Pharmaceutical assaying C. Pharmacopeial
test B. Identification test D. Special test - ✔ ✔ A
Type of alkaloidal assay where the total alkaloids are determined.
A. Ultimate C. Extraction
B. Specific D. Proximate - ✔ ✔ D
The measurement of a base of a given sample by titration with a standard acid is
known as:
A. Acidimetry C. Alkalimetry
B. Compleximetry D. Redox - ✔ ✔ A
Which of the following substance is assayed by residual alkalimetric
analysis. A. Aspirin C. Hydrochloric acid
B. Sodium hydroxide D. Zinc oxide - ✔ ✔ A
The molecular weight of NaOH is 40. How many grams of NaOH pellets
are needed to make
500mL of 1.5 N solution?
A. 20 C. 40
B. 30 D. 60 - ✔ ✔ B
Which of the following is the most effective chemical substance in removing
stains of
,potassium permanganate?
A. Oxalic acid C. Chalk
B. Sodium thiosulfate D. Vinegar - ✔ ✔ A
Which of the following indicators is the least used for acid-base
titration? A. Methyl Orange C. Ferric Alum
B. Phenolpthalein D. Methyl Red - ✔ ✔ C
Residual method titration with EDTA is applicable to what metal ion?
A. Calcium C. Zinc
B. Aluminum D. Magnesium - ✔ ✔ B
Chemical reactions that involves a change in the valence number of reacting
substances.
A. Neutralization C. Oxidation-Reduction
B. Complexation D. Precipitation - ✔ ✔ C
A process wherein the sample is made to liberate iodine, which is then
titrated with a standard
solution of sodium thiosulfate.
A. Volumetric titration C. Iodometry
B. Back titration D. Iodimetry - ✔ ✔ C
Malic acid represent in cherry juice may be determined by:
A. Indirect Permanganate oxidation Method
, B. Direct Permanganate Oxidation
Method C. Alkalimetry - ✔ ✔ A
Iodometry is an indirect analysis of:
A. Oxidizing agents C. Acids
B. Reducing agents D. Bases - ✔ ✔ A
The chemical factor used in calculation of percent purity of a substance in
volumetric analysis.
A. mEq weight C. Molality
B. Molarity D. None of the above - ✔ ✔ A
Adsorption indicators are used in:
A. Complexity C. Volumetric Precipitation
B. Acidimetry D. Alkalimetry - ✔ ✔ C
The indicator used in permanganate titration:
A. Methyl Orange C. Permanganate solution
B. Phenolpthalein D. Methyl Red - ✔ ✔ C
The indicator for EDTA direct titration of calcium carbonate:
A. Thymol blue C. Methyl red
B. Hydroxynapthol blue D. Methylene blue - ✔ ✔ B
