PA1-Lec Midterms

An oxidizing agent ______ electron.

• gains

• loses

• receives

• donates

It pertains to reaction with an acid and a base resulting to the formation of salt and water.

• Neutralization

• Complexation

• Precipitation

• Oxidation

The theoretical point at which the added titrant is chemically equivalent to the analyte in the sample.

• Stoichiometric point

• Equivalence point

• Endpoint

• Stoichiometric or equivalence point

What is the method of analysis involved in the assay of sodium hydroxide

• Direct acidimetry

• Direct alkalimetry

• Direct precipitimetry

• Direct compleximetry

It is the point in which the titration process is stopped.

• Equivalence point

• Endpoint

• Stoichiometric point

What is the method of analysis involved in the assay of aspirin capsule?

• Residual Acidimetry

• Residual alkalimetry

• Residual compleximetry

• Residual permanganometry

The indicator used when titrating weak acid with a strong base.

• Ferric alum

• phenolphthalein

• Ferroin

• Dichlorofluorescien

What is the commonly employed titrant in nonaqueous acidimetry?

• Hydrochloric acid

• Bromic acid

• Perchloric acid

• Sulfuric acid

Which of the following indicator/s is/are used when titrating a strong acid with a strong alkali?

• Methyl red

• Phenolphthalein

• Methyl orange

• All of these

• None of these

What type of analysis involves a change in the valence of the reacting substance?

• Complexation

• Oxidation-reduction

• Neutralization

• Precipitation