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प्रश्न
Distinguish by dilute sulphuric acid.
Sodium Sulphite and sodium carbonate?
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उत्तर
| Sodium Sulphite | Sodium carbonate |
| Sodium sulphite is the sodium salt of sulphurous acid having molecular formula Na2SO3, can be made by dissolving NaOH in H2SO3. In Sodium sulphite, the oxidation state of Sulphur is +4. | Sodium carbonate (Na2CO3) will effervesce when dilute acid is added and a colourless, odourless gas (carbon dioxide) will be given off which, if bubbled through lime-water, will turn it cloudy. |
|
Gas evolved is SO2. |
The gas evolved is carbon dioxide. |
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संबंधित प्रश्न
Write the missing reactants and products and balance the equations.
NaOH + ............... `→` NaCI + ...................
FILL IN THE BLANK
Negatively charged ions are called ..........
Fill in the blank
A new substance is always formed in a _______ change.
What do you observe? When
Sodium chloride solution is added to silver nitrate solution.
Name: A brown gas
State the original colour of the following substance and colour of residue obtained after heating.
Ammonium dichromate
Complete the table given below.
| Heat on iodine crystals | Colour of vapours evolved |
Name the solid residual product formed reaction and state its colour during – thermal decomposition of the following substance.
Ammonium dichromate.
The percentage composition of Nitrogen in Ureas is ______.
Galvanization is a process in which ______ is coated as a layer of iron.
