8. Which of the following is/are true when milk changes into curd?1. Its changes colour from liquid to semisolid it. It changes colour. It changes tasteiv. The changes cannot be reverseda ) and (ii) are correctb.) to (iv) are correctc.(i) and (ii) correctd. (i) and (iii) (iv) are correct9. The gas we use in the kitchen is called Liquified Petroleum Gas (LPG). In thecylinder 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 thesechanges. Choose the correct one.a. Process - A is a chemical change.b. Process - B is a chemical change.c. Both processes A and B are physical changes.d. None of these processes is a chemical change.10. Anaerobic bacteria digest animal waste and product biogas (change-A). Thebiogas is then burnt as fuel (Change-B). The following statements pertain tothese changes. Choose the correct one.a. Process-A is a chemical change.b. Process-B is a chemical change.c. Both processes A and B are chemical changes.d. None of these processes is a chemical change.​