Preview Questions Chemical Researcher | Role Specific Skill

Question 1: How would you design an experiment to evaluate the corrosion resistance of a material exposed to different chemical environments?

Which action should you take?

Choose only one option

Only test materials under acidic conditions

Limit testing to ambient temperature only

Vary the environmental conditions and material types, and measure corrosion rates

Use a constant temperature and exposure time for all environments

Question 2: In Gas Chromatography (GC), what is the primary function of the injector port?

Which action should you take?

Choose only one option

To vaporize the sample and inject it into the chromatographic column

To separate the components based on their boiling points

To detect the compounds as they pass through the detector

To collect the eluate after separation

Question 3: When using an FTIR spectrometer, how do you obtain information about functional groups in a molecule?

Which action should you take?

Choose only one option

By analyzing the peaks corresponding to the molecular vibrations

By evaluating the solubility of the sample in different solvents

By observing the changes in the temperature of the sample

By measuring the molecular mass of the sample

Question 4: When planning a batch reactor experiment, which factor must be considered to ensure optimal heat transfer?

Which action should you take?

Choose only one option

The shape of the batch reactor

The color of the reactor walls

The geometry of the reactor and heat exchange surface area

The flow rate of the reactants

Question 5: In an experiment where reaction yield is the primary focus, what is the most important step in the experimental procedure?

Which action should you take?

Choose only one option

Ignoring catalyst influence

Only focusing on the final product quality

Ensuring accurate measurement of reactants

Using excess reactants to ensure completion of the reaction

Question 6: What does the term "dynamic range" refer to in a spectrophotometric measurement?

Which action should you take?

Choose only one option

The minimum sample volume required for analysis

The resolution of the spectrometer in detecting closely spaced peaks

The maximum temperature at which the instrument can operate

The range of concentrations that can be accurately measured by the instrument