TASK DEFINITION: In this task, you are given a question and answer options for that question. Using this information, you have to classify each text into different topics: medicine, nursery, psychology, chemistry, pharmacology, biology.
PROBLEM: Question: The aldol condensation gives rise to: 
 Options:  <0> Α, β-unsaturated amides. <1> Saturated amides. <2> Α, β-unsaturated carbonyl compounds. <3> Chiral compounds. <4> Β, γ-unsaturated carbonyl compounds.

SOLUTION: chemistry

PROBLEM: Question: Which of the following administration routes are commonly used for drugs of a peptide and protein nature ?: 
 Options:  <0> Oral. <1> Intravenous, intramuscular and subcutaneous. <2> Oral, intravenous and subcutaneous. <3> Oral, intranasal and inhalation. <4> Oral, intramuscular and intranasal.

SOLUTION: pharmacology

PROBLEM: Question: In chromatography, the dead time can be defined as: 
 Options:  <0> The time between the injection of a sample and the appearance of a solute peak in the detector. <1> The factor that indicates the amount of time a solute spends in the stationary phase in relation to the time spent in the mobile phase. <2> The time it takes for a non-retained species to pass through a chromatographic column. <3> The time it takes for the analyte to pass through the chromatographic detector. <4> The relationship between the average linear velocity and the packing length of the column.

SOLUTION:
chemistry