Question

Identify x, y and z in the following reaction
2KClO3 (x) ---------→ 2KCl ( y) + O2 (z)
a) x = gas , y = liquid , Z -= gas
b) x = gas , y = solid z = solid
c) x = number of moles of KClO3 , Y = physical state of KCl .
z = number of moles of oxygen
d) x = physical state of KClO3 , y = physical state of KCl , z =
physical state of O2

Answer 1

Answer:

x=gas y=solid z= solid

Answer 2

In the given reaction, $\[2KCl{O_3}({\text{x}}) \to 2KCl({\text{y}}) + {O_2}({\text{z}})\]$, x, y and z are the physical state of $\[KCl{O_3}\]$, the physical state of KCl and the physical state of $\[{O_2}\]$ respectovely. Thus, the correct option is (d).

Explanation:

• The given reaction is the decomposition reaction of potassium chlorate.
• Potassium chlorate decomposes on heating into potassium chloride and oxygen.
• The reaction can be given as:

        $\[2KCl{O_3}(s) \to 2KCl(s) + {O_2}(g)\]$

• In this reaction, potassium chlorate is solid, KCl is solid and oxygen is gas.
• Therefore, x, y and z represent the physical state of $\[KCl{O_3}\]$, the physical state of KCl and the physical state of $\[{O_2}\]$ respectively.