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 solubility of copper hydroxide in the presence of a high concentration of ammonia:
Options: <0> Increased by formation of a complex ion of Cu2 + with NH3. <1> It is not affected because there is no common ion effect. <2> Decreases by common ion effect. <3> It decreases upon oxidation of bromide to molecular bromine. <4> It decreases because the hydroxides are more soluble in acidic medium.
chemistry

Question: Immunoglobulin isotype change affects:
Options: <0> The constant regions of the heavy chains. <1> The constant regions of the light chains. <2> The totality of heavy chains. <3> The entire immunoglobulin molecule. <4> The hypervariable regions of the heavy chains.
biology

Question: Which of the following molecules has the highest dipole moment ?:
Options: <0> HCI. <1> NH3. <2> HF. <3> CO2 <4> Trans-CHCI = CHCI.
pharmacology