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प्रश्न
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.
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उत्तर
As an Oxidizing agent :
H2SO4 → H2O + SO2 + [O]
C + 2[O] → CO2
As a non-volatile acid :
\[\ce{NaCl + H2SO4 ->[200°C] NaHSO4 + HCl}\]
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संबंधित प्रश्न
Give two balanced reactions of the type to show the following property of sulphuric acid:
Non-volatile nature
Give a chemical test to distinguish between dilute sulphuric acid and conc. sulphuric acid.
Name the following:
The precipitate obtained by treating carbon with hot concentrated sulphuric acid.
Give reason for the following:
When concentrated sulphuric acid is added to sugar/glucose, a black mass is left behind.
Give reason for the following:
Concentrated sulphuric acid should not be added to oxalic acid or formic acid in the open laboratory.
Give examples of the use of sulphuric acid as
Non-volatile acid
Name the anion [negative ion] present in the following compound:
Compound D when warmed with dilute H2SO4 gives a gas which turns acidified potassium dichromate solution green.
In the given equation identify the role played by concentrated sulphuric acid S + 2H2SO4→ 3SO2 + 2H2O
Write the observation for the following:
Decomposition of bicarbonates by dil. H2SO4.
\[\ce{2NaHCO3 + H2SO4 -> Na2SO4 + 2H2O + 2CO2}\]
State two observations when
A few crystals of KNO3 are heated in a hard glass tube
