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प्रश्न
State two observations when
A few crystals of KNO3 are heated in a hard glass tube
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उत्तर
Oxygen is evolved.
2KNO3→ 2KNO2 + O2
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संबंधित प्रश्न
Distinguish between the given pair of compounds using the test given within brackets:
Sodium nitrate and sodium sulphite (using dilute sulphuric acid).
Which property of sulphuric acid is shown by the reaction of the concentrated sulphuric acid with ethanol?
Give two balanced reactions of each type to show the following properties of sulphuric acid:
Hygroscopic nature
Define the following term : Dehydrating agent
Name the Following:
The property used to prepare HCl and HNO3 from H2SO4.
Give reason for the following:
Concentrated sulphuric acid should not be added to oxalic acid or formic acid in the open laboratory.
Give reason for the following:
When concentrated sulphuric acid is added to blue crystalline copper sulphate, it turns powdery white.
Describe the reaction that show
Concentrated sulphuric acid behaves as oxidizing agent.
Write balanced equation for potassium hydrogen carbonate and dilute sulphuric acid.
Differentiate between the following pair based on the criteria given in the bracket:
Cane sugar and hydrated copper sulphate [using concentrated H2SO4]
