instruction:
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'.
question:
Question: The reaction conditions for the preparation of 2-methyl-2-methoxypropan-1-ol from 2,2-dimethyloxirane are: 
 Options:  <1> Methanol in acid medium. <2> Lithium aluminum hydride in methanol. <3> Methylmagnesium bromide and subsequent hydrolysis. <4> Sodium methoxide in methanol. <5> Triphenylphosphine in methanol.
answer:
1


question:
Question: Ammonia usually used in the laboratory: 
 Options:  <1> It is a pure compound, liquid at environmental temperature and pressure. <2> It is a gaseous ammonia solution in water, very diluted, because ammonia is very little soluble in water. <3> It is a solution of gaseous ammonia in water, very concentrated, because ammonia is very soluble in water. <4> It is a gaseous ammonia solution in ethanol, because pure gaseous ammonia is insoluble in water. <5> It is a saturated solution of ammonium chloride in water.
answer:
3


question:
Question: The denaturing of proteins: 
 Options:  <1> Alters the native conformation without affecting the biological activity. <2> It is always irreversible. <3> It can only be achieved by treatment with strong acids. <4> It does not affect the primary structure. <5> It produces the hydrolysis of the protein.
answer:

4