Beckmann Rearrangement & Mechanism

Beckmann Rearrangement:-  

In this rearrangement ketoxime can be converted into N-substituted amide in the presence of acidic rearrangement i.e aqueous sulphuric acid.

How to prepare ketoxime ?

General Reaction :- 

Mechanism :- 

Important Reaction :- 

This reaction can be used in the production of nylon 6.