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.
Q: Question: The organometallic react with the nitriles giving:
Options: <0> Amino acids. <1> Lactones. <2> Alcohols <3> Ketones <4> None of the above.
A:
chemistry