(i) Please explain why high molecularity reactions are rare but not conflicting with the fact that increasing concentration increases the forward reaction rate (ii) What is rate limiting step? Discuss...

(i) Please explain why high molecularity reactions are rare but not conflicting with the fact that increasing concentration increases the forward reaction rate

(ii) What is rate limiting step? Discuss its significance in case of running a chemical industry that produces highly demanded ‘consumer products’ and also please highlight the methodology how to make the above mentioned step faster.