KNEC chemistry 2006 past papers

 CHEMISTRY PAPER 1 2006 QUESTIONS 1. (a) What is meant by isomerism? (1mark) (b) Draw and name two isomers of butane. (2 marks) 2. The diagram below represent a set-up that was used to show that part of air is used during burning. a) Given that phosphorus used was was in excess, draw a diagram