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.
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Question: Question: The oxygen of the ethers as that of the alcohols can be protonated to generate: 
 Options:  <0> Iminium ion. <1> Alkaloxonium ions. <2> Peroxides <3> Piranos. <4> Enaminas

Answer: chemistry


Question: Question: The treatment of 1-hexyne with 1 mole of hydrogen bromide results in: 
 Options:  <0> 1-bromo-1-hexene. <1> 1-bromo-2-hexene. <2> 1-bromo-3-hexene. <3> 2-bromo-1-hexene. <4> 2-bromo-2-hexene.

Answer: chemistry


Question: Question: The bodily delusion idea is defined as: 
 Options:  <0> Delusional idea whose main content refers to the functioning of one's own body. <1> Delusional idea that the subject has lost or will lose all or almost all his physical possessions. <2> Ideal delirious in which the feelings, impulses, thoughts or acts are lived as if they were not their own and were imposed by some external force. <3> Delusional idea whose content implies an exaggerated assessment of personal importance, power, knowledge or identity. <4> Delusional idea about the non-existence of the self.

Answer:
psychology