Q31 of 252 Page 57

Explain why, hydrogen and oxygen are considered elements whereas water is not considered an element.

Hydrogen and oxygen are made up of same kind of atom hence these are considered as elements whereas water is made by the combination of different kinds of atoms such as hydrogen and oxygen, hence it is called as a compound and not an element.


More from this chapter

All 252 →
29

State three reasons why you think air is a mixture and water is a compound.

 30

Name two solid, two liquids and two gaseous elements at the room temperature.

 32

What are the three groups into which all the elements can be divided? Name two elements belonging to each group.

 33

State two physical properties on the basis of which metals can be distinguished from non-metals.