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प्रश्न
Write the observation for the following:
Decomposition of bicarbonates by dil. H2SO4
\[\ce{2NaHCO3 + H2SO4 -> Na2SO4 + 2H2O + 2CO2}\]
उत्तर
Brick effervescence is observed and colourless and odourless CO2 gas is evolved in both the cases.
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संबंधित प्रश्न
Give one equation to show the following properties of sulphuric acid:
Dehydrating property
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 Ethanol?
What would you observe in the following case?
Hot concentrated sulphuric acid is added to sodium chloride crystals.
Give reason for the following:
Concentrated sulphuric acid should not be added to oxalic acid or formic acid in the open laboratory.
Sulphuric acid can be used to prepare a number of gases in the laboratory. Write balanced equation for the reaction from which the folllowing gas are obtained, using dilute sulphuric acid as one of the reactant : Hydrogen
Write the equation of the following reaction :
Concentrated sulphuric acid is poured over sugar
State one appropriate observation of the following:
Dehydration of Concentrated Sulphuric acid with sugar crystals
The gas evolved when dilute sulphuric acid reacts with iron sulphide.
A, B and C are the chemical properties of sulphuric acid:
A. Oxidizing agent
B. Dehydrating agent
C. Non-volatile acid
Match the following equations 1 to 3 to the above chemical properties of sulphuric acid.
1. \[\ce{KNO3 + H2SO4 -> KHSO4 + HNO3}\]
2. \[\ce{C12H22O11 -> 12C + 11H2O}\]
3. \[\ce{S + 2H2SO4 -> 2H2O + 3SO2}\]
