Treatment of 3-methyl-2-butanol with dry HCl gives

4-methoxy-2-methyl-2-butanol

3-methyl-2-butanol on treatment with HCl gives (major product)

3-methyl-2-butanol on treatment with HCl gives (major product)

3-methyl-2 butanol on treatment with HCl gives predominantly

Addition of HCl to 3,3-dimethyl-1-butene and reaction of HCl with 3,3-dimethyl-2-butanol give the same product. Explain,

The dehydration of 2- Methyl butanol with conc. H_(2)SO_(4) gives