Look at the diagram below and answer the question that follows:

Draw a diagram representing the molecular arrangement third state of matter which is not represented by any of the given figure.

Observe the given picture and answer the questions that follow:

Which one of the above figures shows the occurrence of a physical change?

Observe the given picture and answer the question that follows:

Is the formation of iron sulphide on heating iron filings and sulphur powder a physical or a chemical change?

Observe the given picture and answer the questions that follow:

Is the formation of iron sulphide a reversible or irreversible change?

Categorise the substance into the weakest strongest inter-molecular forces of attraction.

Kerosene, air, water, duster, and mustard oil.

Marble cannot be compressed. Why?