In this task, you are given a multiple-choice question about healthcare. Answer the question based on your information and classify your answers into '1', '2', '3', and '4'.
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Question: Question: The determination of cyanide by the Liebig method is based on the addition of a silver nitrate standard solution: 
 Options:  <1> Until complete precipitation of silver cyanide. <2> Until the precipitation of silver cyanide begins. <3> Until the appearance of a red precipitate of silver chromate. <4> Until the AgCN complex is quantitatively formed. <5> Until the precipitation of silver iodide, yellow.

Answer: 2


Question: Question: The reaction of Wolff-Kishner is one: 
 Options:  <1> Oxidation of carbonyls to give acids. <2> Reduction of carbonyls to alcohols. <3> Deoxygenation of carbonyls that takes place in an acid medium. <4> Deoxygenation of carbonyls that is carried out in an alkaline medium. <5> Carbonyl deoxygenation performed in neutral medium.

Answer: 4


Question: Question: The degenerative neurological disorder that occurs as a result of degeneration and loss of nigrostriatal dopaminergic neurons is called: 
 Options:  <1> Phenylketonuria <2> Transmissible spongiform encephalopathy or TSE. <3> Multiple sclerosis. <4> Huntington's disease <5> Parkinson's disease

Answer:
5