Advertisements
Advertisements
Question
How is dioxygen prepared in the laboratory from KClO3?
Advertisements
Solution
Dioxygen is prepared by heating potassium chlorate (KClO3) in the presence of the catalyst, MnO2.
\[\ce{\underset{Potassium chlorate}{2KClO_{3(s)}} ->[Heat][MnO2] 2KCl_{(s)} + \underset{Dioxygen}{3O_{2(g)}}}\]
RELATED QUESTIONS
Answer the following.
Name two gases which deplete ozone layer.
What happens when lead sulfide reacts with ozone \[\ce{O3}\]?
Discuss the structure of sulfur dioxide.
Answer the following.
Draw structures of XeF2.
What are interhalogen compounds?
Answer the following.
Describe the structure of the Ozone. Give two uses of ozone.
O2 molecule is ______.
The number of covalent bonds present in sulfuric acid:
Complete the following reaction:
\[\ce{SO_{2(g)} + Cl_{2(g)} ->[Charcoal]}\] ?
Name the solution which is formed by passing sulfur dioxide in water.
Which of the following molecule does not contain oxygen?
Find the CORRECT statement.
\[\ce{I2_{(g)} + H2S_{(g)} -> 2HI_{(g)} + S_{(s)}}\]
Which of the following statements is INCORRECT?
In resonance hybrid of ozone molecule, O-O bond length is ____________.
Which among the following oxides is amphoteric in nature?
High concentration of which of the following in the atmosphere leads to stiffness of flower buds which eventually fall off from plants?
Identify the element that forms amphoteric oxide.
What will be the formula of an oxide of iodine (atomic mass = 127) which contains 25.4 g of iodine and 8g of oxygen?
Give reason:
Bleaching action of ozone is also called dry bleach.
Write the reaction of the following with concentrated H2SO4:
CaF2
What are the basic oxides? Explain with an example.
Calculate the oxidation state of S in oleum
Mention the value of the bond angle in SO2.
Industrial method of preparation of dioxygen.
Write names of two oxides.
