Advertisements
Advertisements
प्रश्न
What happens when oxygen gas is passed through alkaline pyrogallol solution ?
Advertisements
उत्तर
Alkaline pyrogallol solution turns brown when oxygen is passed through it.
APPEARS IN
संबंधित प्रश्न
A chemical called oxygenated water.
Two substances from which oxygen can be obtained at a large scale.
Name the three types of oxidation processes. In which of these large amount of heat and light energy are produced?
Give four uses of oxygen.
How is oxygen naturally renewed in air ?
Give balanced equation to obtain oxygen from Silver oxide.
Fill in the blank space by choosing the correct word from the given list.
List: sulphurous, nitric acid, red lead oxide paint, oxygen, phosphoric
The nitric oxide gas reacts with the oxygen and water vapour to form ______ vapour.
Tick (√ ) the most appropriate answer.
When sulphur burns in oxygen, the colour of the flame is :
(a) Starting from hydrogen peroxide how is oxygen gas prepared in laboratory?
(b) What is the function of manganese dioxide?
(c) Write fully balanced equation for the liberation of oxygen from hydrogen peroxide.
(d) Why is the above method preferred to any other method?
Give reasons for the following:
oxygens finds utility in welding & cutting of metals.
