Advertisements
Advertisements
प्रश्न
The pH values of three solutions A, B and C are given in the table. Answer the folloiwng questions:
| Solution | pH value |
| A | 12 |
| B | 2 |
| C | 7 |
Which solution will liberate CO2 when reacted with sodium carbonate?
Advertisements
उत्तर
Solution B with acidic pH liberates CO2 with sodium carbonate.
APPEARS IN
संबंधित प्रश्न
Write a balanced chemical equation for Action of dilute hydrochloric acid on magnesium sulphite.
How is common salt obtained from sea-water?
Name the raw material used for the production of caustic soda.
Complete and balance the following chemical equations:
`NaCI (aq) + H_2O (l) `
What happens when a concentrated solution of sodium chloride (brine) is electrolysed? Write the equation of the reaction involved.
Give one example of a salt which gives an aqueous solution having:
pH less than 7
What is deliquescence? What name is given to the compounds exhibiting such property?
Fill in the blank
___________ is the phenomenon by which hydrated salts on exposure to dry air, lose their water of crystallization and crumble to powder.
Copy and complete the following table which refers to the action of heat on some carbonates:
| Carbonate | Colour of residue on cooling |
| Zinc Carbonate | |
| Lead carbonate | |
| Copper carbonate |
Sodium carbonate is a basic salt because it is a salt of a ____________.
