Advertisements
Advertisements
प्रश्न
Name the anion present in the following compound:
Compound A, when warmed with concentrated sulphuric acid, gives a gas which fumes in moist air and which gives dense white fumes with ammonia.
Advertisements
उत्तर
Compound A is NaCl and the anion is [Cl–].
APPEARS IN
संबंधित प्रश्न
Give one word or a phrase:
The property by which certain hydrated salts, when left exposed to atmosphere, lose their water of crystallization and crumble into powder.
Write a balanced equation for the preparation of the following salt:
Zinc carbonate from zinc sulphate.
The number of molecules of water of crystallisation present in washing soda crystals is ______.
A salt whose aqueous solution will have a pH of more than 7 will be ______.
Write the name and formula of one salt which contains:
Two molecules of water of crystallisation.
Outline the steps required to convert hydrogen chloride to anhydrous iron (III) chloride. Write the equations for the reactions.
State what would you observe when :
Washing soda crystals are exposed to the atmosphere.
Many salts absorb water from the atmosphere. This property is called:
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 | |
How many grams of Magnesium Sulphate are present in 135g of solid left by evaporation of sea water?
Salt which is formed by the partial replacement of hydrogen ions of an acid by a metal is called ______.
