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प्रश्न
State what would you observe when Washing Soda Crystals are exposed to the atmosphere
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उत्तर
When exposed to the atmosphere, it becomes a monohydrate.
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संबंधित प्रश्न
What happens when copper sulphate crystals are heated strongly? Explain with the help of an equation.
Name three products of the chlor-alkali process. State two uses of each of these products.
Give one example of a salt which gives an aqueous solution having:
pH less than 7
Write the name and formula of one salt which contains:
Two molecules of water of crystallisation.
name two salts which are basic.
The pH values of three solutions A, B and C are given in the table. Answer the following questions:
| Solution | pH value |
| A | 12 |
| B | 2 |
| C | 7 |
- Which solution will have no effect on litmus solution?
- Which solution will liberate CO2 when reacted with sodium carbonate?
- Which solution will turn red litmus solution blue?
Name the particles present in :
Strong electrolyte
Define the following term:
Efflorescence
The Salt Story
From: The New Indian Express 9 March 2021
The salt pans in Marakkanam, a port town about 120 km from Chennai are the third largest producer of salt in Tamil Nadu. Separation of salt from water is a laborious process and the salt obtained is used as raw materials for manufacture of various sodium compounds.
One such compound is Sodium hydrogen carbonate, used in baking, as an antacid and in soda acid fire extinguishers.
The table shows the mass of various compounds obtained when 1litre of sea water is evaporated.
| COMPOUND | FORMULA | MASS OF SOLID PRESENT /g |
| Sodium Chloride | NaCl | 28.0 |
| Magnesium Chloride | MgCl2 | 8.0 |
| Magnesium Sulphate | MgSO4 | 6.0 |
| Calcium Sulphate | CaSO4 | 2.0 |
| Calcium Carbonate | CaCO3 | 1.0 |
| TOTAL AMOUNT OF SALT OBTAINED | 45.0 | |
What is the pH of the acid which is used in the formation of common salt?
A salt that is formed by the complete neutralization of an acid and a base is called ______ salt.
