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.

Question: The reaction of 3-nitrobenzaldehyde with NaBH 4 in aqueous methanol gives:
Options: <0> 3-Aminobenzaldehyde. <1> 3-nitrobenzoic acid. <2> 1-Methyl-3-nitrobenzene. <3> 3-Nitrobenzoate sodium. <4> (3-Nitrophenyl) methanol.
chemistry

Question: By means of the angular methods used to evaluate the flow properties of a powder, it is determined:
Options: <0> The ease with which the solid sets in motion. <1> The angle of repose. <2> The flow velocity <3> The resistance to displacement. <4> The density of the powder.
pharmacology

Question: A man suffering from bronchial asthma is undergoing a chronic treatment lasting several years with glucocorticoids. Which of the following adverse reactions detected in said patient is not due to the prolonged use of corticoid therapy ?:
Options: <0> Poor healing of wounds. <1> Osteoporosis. <2> Arterial hypotension. <3> Thinning of the skin <4> Muscular atrophy.
pharmacology