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प्रश्न
Write the observation for the following:
Decomposition of bicarbonates by dil. H2SO4.
\[\ce{2NaHCO3 + H2SO4 -> Na2SO4 + 2H2O + 2CO2}\]
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उत्तर
Brick effervescence is observed and colourless and odourless CO2 gas is evolved in this case.
संबंधित प्रश्न
A, B, C, and D summarize the properties of sulphuric acid depending on whether it is dilute or concentrated.
A = Typical acid property
B = Non volatile acid
C = Oxidizing agent
D = Dehydrating agent
Choose the property (A, B, C or D) depending on which is relevant to each of the following
1) Preparation of Hydrogen chloride gas
2) Preparation of Copper sulphate from copper oxide.
3) An action of conc. Sulphuric acid on Sulphur.
Why is water not added to concentrated H2SO4 in order to dilute it?
How are the following conversion brought about? Give equation and condition:
Dilute sulphuric acid to hydrogen.
The following statement is correct only under certain conditions. Rewrite the statement including the appropriate conditions.
Oxalic acid reacts with sulphuric acid to produce carbon monoxide and carbon dioxide.
What do you observe when barium chloride solution is added to dilute sulphuric acid ?
State your observation for the following case :
Dry red rose petals are placed in the jar of sulphur dioxide.
Give a balanced chemical equation for the action of sulphuric acid on the following:
Sulphur
State two observations when
A few crystals of KNO3 are heated in a hard glass tube
Name the acid formed when sulphur dioxide dissolves in water.
Write a balanced equation for the following conversion:
Lead sulphate from lead nitrate and sulphuric acid.
