Compound 'A' of molecular formula `C_(4) H_(10) O` on treatment with Lucas reagent at room temperature gives compound 'B'. When compound 'B' is heated with alcoholic KOH, it gives isobutene. Compound 'A' and 'B' are respectively

Options

A. a) 2-methyl-2-propanol and 2-methyl-2-chloropropane
B. b) 2-methyl-1-propanol and 1-chloro-2-methylpropane
C. c) 2-methyl-1-propanol and 2-methyl-2-chloropropane
D. d) butan-2-ol and 2-chlorobutane

Answer

A

Explanation

`CH_3 - underset(underset(underset(underset("2-methyl-2-propanol")((A)))(CH_3))(|))overset(overset(CH_3)(|))(C)-OH underset(("Lucas reagent")) overset("HCI"+"ZnCI"_2)(to)CH_3 - underset(underset(underset(underset("2-chloro-2-methyl propanol")((B)))(CH_3))(|))overset(overset(CH_3)(|))(C)-CI`
`" "Delta darr "alc.KOH`
`" " underset("isobutene")(CH_3 - underset(underset(CH_2) (||)) overset(overset(CH_3) (|))(C) )`