When solid A is added to water, it dissolves with the evolution of a lot of heat and makes little explosions to form two products B and C. The properties of products B and C are entirely different from those of solid A as well as water. 

Moreover, products B and C cannot be reconverted into solid A and water. When another solid D is added to water, it dissolves with the absorption of a little heat to form a product E which cools down. Product E shows the properties of both, solid D as well as water.

Moreover, product E can be converted into solid D and water.

i) A chemical change occurs when solid A is dissolved in water

ii) A physical change occurs when solid D is dissolved in water

iii) Metal sodium could behave like solid A

iv) E is a mixture

Choose the correct statements