Question

Justify that water is a compound but not a mixture of hydrogen and oxygen

Answer 1

• Water has the formula${\mathrm{H}}_2\mathrm{O}$.There are two hydrogen atoms and one oxygen is present
• The main definition of compound is:-it is formed by the chemical combination of different elements
• we can not separate the elements present in a compound by physical processes like filtration
• In the same way water is also formed by the chemical combination of hydrogen and oxygen which we can not separate by physical processes
• The main definition for mixtures is:-it is formed by the physical combination of substances where we can separate the components present in it by simple physical processes

Therefore we can say that water is a compound but not a mixture of hydrogen and oxygen