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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.
State your observations when paper soaked in potassium permanganate solution is introduced in each case into a 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
How will you distinguish between dilute hydrochloric acid and dilute sulphuric acid using lead nitrate solution?
Give one equation to show the following properties of sulphuric acid:
Acidic nature
Which property of sulphuric acid is shown by the reaction of the concentrated sulphuric acid with carbon?
Name the products formed when hot and concentrated sulphuric acid reacts with Copper.
Give reason for the following:
When concentrated sulphuric acid is exposed to air, its volume increases and it becomes slightly dilute.
State one appropriate observation of the following:
Concentrated sulphuric acid is added dropwise to a crystal of hydrated copper sulphate.
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.
Write the balanced chemical equation for the following conversion:
Copper sulphate from copper and concentrated sulphuric acid.
State two observations when
A few crystals of KNO3 are heated in a hard glass tube
Hydrogen chloride gas is prepared in the laboratory by the action of concentrated sulphuric acid on sodium chloride.
State the method of collection of the gas formed above.
