Task: Text Categorization
Input (English): Question: Heating of 4-methoxy-3,5-dinitrobenzenesulfonic acid with dilute sulfuric acid gives: 
 Options:  <0> 4-Methoxy-3,5-dinitrophenol. <1> 3,5-Diamino-4-methoxybenzenesulfonic acid. <2> 4-methoxy-3,5-dinitrobenzenesulfonic acid anhydride <3> 2-Methoxy-1,3-dinitrobenzene. <4> An organic cation
Output (English): chemistry