Explain only reaction mechanism for alkaline hydrolysis of tert-butylburomide.

Explanation

Alkaline hydrolysis of tert-butyl bromide
`underset("tert-butyl bromide")(CH_(3)-overset(CH_(3))overset("| ")underset(CH_(3))underset("| ")("C ")-Br)+KOH(aq)overset(Delta)rarr underset("tert-butyl alcohol")(CH_(3)-overset(CH_(3))overset("| ")underset(CH_(3))underset("| ")("C ")-OH)+KBr`
Kinetics of the reaction :
Rate of reaction `prop [(CH_(3))_(3)C-Br]`
`= K[(CH_(3))_(3)C-Br]`
This is first order reation.
Mechanism : It takes place in two steps.
Step I : Formation of carbocation : Tert-butyl bromide undergoes hydrolysis to form stable tert-butyl carbonium ion. This is slow step process and rate determining step.

Step II : Attack of uncleophile on carbocation. This is fast step process.