Correct Answer - A
In the reaction between HX and ROH involves the cleavage of `R-OH` bond of the alcohol. The order of reactivity in this reaction is `3^(@) gt 2^(@) gt 1^(@)`. As such 2-methyl-2-propanol, a `3^(@)` alcohol reacts fastest.
`underset("2-Methyl-2-propanol")(CH_(3)-underset(CH_(3))underset(|)overset(OH)overset(|)(C)-CH_(3))`
