Which question can be used to identify a physical property of an element? Does a magnet attract the element?

Does rust form when the element is exposed to oxygen?

Do bubbles form when the element is mixed with an acid?

Does the element burn when held over a Bunsen burner flame?

Does a magnet attract the element?

Explanation:

This is because, the attraction of an element by a magnet is a purely physical property. It has to do with the orientation of the electrons in the element. It does not tell us of the composition of the element or how it reacts with other elements. Whereas, the other questions deal with the chemical properties of the element. That is, how it reacts with other elements or substances.