11. The gas we use in the kitchen is called liquified petroleum gas (LPG). In the cylinder it exist as a liquid. When it comes out from the cylinder it becomes a gas (Change – A) then it burns (Change – B). The following statements pertain to these changes. Choose the correct one.(i) Process – A is a chemical change.(ii) Process – B is a chemical change.(iii) Both processes A and B are chemical changes.(iv) None of these processes is a chemical change.
Simran Bhatia , 11 Years ago
Grade 11
