Advertisements
Advertisements
Question
Distinguish by dilute sulphuric acid.
Sodium Sulphite and sodium carbonate?
Advertisements
Solution
| 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. |
APPEARS IN
RELATED QUESTIONS
FILL IN THE BLANK
In a ............ change, new substances are formed.
TRUE \ FALSE
Weak electrolytes dissociate partially in their aqueous or fused state.
Give an example of the following chemical changes.
A reaction involving
(i) Change of state
(ii) formation of precipitate
State the original colour of the following substance and colour of residue obtained after heating.
Ammonium dichromate
Give a chemical test to distinguish between the following gases.
H2 and O2
Give a chemical test to distinguish between the following gases.
NH3 and SO2
Give balanced equation for the following conversion affected by heat alone on the substance:
Hydrated copper sulphate to sulphur dioxide
Heat may evolve or be absorbed during a ______ change.
______ are substances that speed up the process of a chemical change and it will not undergo any change during the course of the reaction.
What are the chemical reactions that occur in everyday life?
