Answer
Verified
455.1k+ views
Hint: $KCl{{O}_{3}}$ is an oxidant and may explode on prolonged exposure to heat. Potassium chlorate undergoes a decomposition reaction on heating which gives an inorganic residue. The residue thus obtained is heat resistant and is a common inorganic salt.
Complete step by step answer:
$KCl{{O}_{3}}$ or potassium chlorate is a white crystalline compound which produces oxygen when heated in presence of a catalyst.
When heated in presence of a catalyst, like manganese dioxide it gives oxygen and an ionic inorganic salt, potassium chloride. The reaction is-
\[2KCl{{O}_{3}}(s)\to 2KCl(s)+3{{O}_{2}}(g)\]
As we can see from the above reaction, 2 moles of potassium chlorate gives 3 moles of oxygen gas and 2 moles of potassium chloride.
However, in absence of a catalyst, the reaction moves forward differently.
On heating without a catalyst, potassium chlorate turns into potassium perchlorate which on further heating decomposes into oxygen and potassium chloride. The reaction is-
\[\begin{align}
& 4KCl{{O}_{3}}\to 3KCl{{O}_{4}}+KCl \\
& KCl{{O}_{4}}\to KCl+2{{O}_{2}} \\
\end{align}\]
From the above reactions, we can say that 4 moles of potassium chlorate forms 3 moles of potassium perchlorate when heated. Each mole of potassium perchlorate gives 2 moles of oxygen and 1 mole of potassium chloride on further heating.
The final product obtained is the same in both the cases but the later reaction is more time consuming. Presence of a catalyst gives the product directly.
Therefore, it is clear from the above reactions that the correct answer is [B] $KCl+{{O}_{2}}$.
Additional information:
Potassium chlorate forms an extremely flammable mixture with combustible materials which may also be used in explosives. The mixture may ignite just by friction.
Note:
It is important to remember here that Potassium chlorate undergoes an oxidation-reduction reaction also known as red-ox reaction. Here, chlorine gets reduced and oxygen gets oxidised. Also , oxygen gas is evolved during the reaction. It is also important to remember that it does not form $KCl{{O}_{2}}$ on heating.
Complete step by step answer:
$KCl{{O}_{3}}$ or potassium chlorate is a white crystalline compound which produces oxygen when heated in presence of a catalyst.
When heated in presence of a catalyst, like manganese dioxide it gives oxygen and an ionic inorganic salt, potassium chloride. The reaction is-
\[2KCl{{O}_{3}}(s)\to 2KCl(s)+3{{O}_{2}}(g)\]
As we can see from the above reaction, 2 moles of potassium chlorate gives 3 moles of oxygen gas and 2 moles of potassium chloride.
However, in absence of a catalyst, the reaction moves forward differently.
On heating without a catalyst, potassium chlorate turns into potassium perchlorate which on further heating decomposes into oxygen and potassium chloride. The reaction is-
\[\begin{align}
& 4KCl{{O}_{3}}\to 3KCl{{O}_{4}}+KCl \\
& KCl{{O}_{4}}\to KCl+2{{O}_{2}} \\
\end{align}\]
From the above reactions, we can say that 4 moles of potassium chlorate forms 3 moles of potassium perchlorate when heated. Each mole of potassium perchlorate gives 2 moles of oxygen and 1 mole of potassium chloride on further heating.
The final product obtained is the same in both the cases but the later reaction is more time consuming. Presence of a catalyst gives the product directly.
Therefore, it is clear from the above reactions that the correct answer is [B] $KCl+{{O}_{2}}$.
Additional information:
Potassium chlorate forms an extremely flammable mixture with combustible materials which may also be used in explosives. The mixture may ignite just by friction.
Note:
It is important to remember here that Potassium chlorate undergoes an oxidation-reduction reaction also known as red-ox reaction. Here, chlorine gets reduced and oxygen gets oxidised. Also , oxygen gas is evolved during the reaction. It is also important to remember that it does not form $KCl{{O}_{2}}$ on heating.
Recently Updated Pages
what is the correct chronological order of the following class 10 social science CBSE
Which of the following was not the actual cause for class 10 social science CBSE
Which of the following statements is not correct A class 10 social science CBSE
Which of the following leaders was not present in the class 10 social science CBSE
Garampani Sanctuary is located at A Diphu Assam B Gangtok class 10 social science CBSE
Which one of the following places is not covered by class 10 social science CBSE
Trending doubts
Which are the Top 10 Largest Countries of the World?
How do you graph the function fx 4x class 9 maths CBSE
The Equation xxx + 2 is Satisfied when x is Equal to Class 10 Maths
Fill the blanks with the suitable prepositions 1 The class 9 english CBSE
Difference Between Plant Cell and Animal Cell
Why is there a time difference of about 5 hours between class 10 social science CBSE
Difference between Prokaryotic cell and Eukaryotic class 11 biology CBSE
Give 10 examples for herbs , shrubs , climbers , creepers
Draw a labelled sketch of the human eye class 12 physics CBSE