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प्रश्न
State your observation for the following case:
Paper soaked in potassium permanganate solution is introduced into a gas jar of sulphur dioxide.
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उत्तर
The bleaching effect of sulphur dioxide causes the pink tint of potassium permanganate paper to turn colourless.
संबंधित प्रश्न
Write a balanced chemical equation for the following:
Action of concentrated sulphuric acid on Sulphur.
State the conditions required for the given reaction to take place:
Any two conditions for the conversion of sulphur dioxide to sulphur trioxide
How are the following conversion brought about? Give equation and condition:
Sodium chloride to hydrogen chloride.
Give reason for the following:
Concentrated sulphuric acid is kept in airtight bottles.
Write balanced equation for the reaction between iron and dilute sulphuric acid.
What do you see when concentrated sulphuric acid is added to copper sulphate-5-water ( You are not required to say what is happing, nor is it necessary to name the products.)
Which concentrated acid oxidizes sulphur directly to sulphuric acid ? Write the equation for the same. What is the name of the process by which sulphuric acid is manufactured ? Name the catalyst used in the process.
Write balanced chemical equation to show :
The dehydrating property of conc. sulphuric acid
Concentrated sulphuric acid is both an oxidizing agent and a non-volatile acid. Write one equation each to illustrate the properties of sulphuric acid mentioned above.
State two observations when
A few crystals of KNO3 are heated in a hard glass tube
