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प्रश्न
What is meant by 'a family of salts'? Explain with examples.
उत्तर
Salts having the same positive ions or the same negative ions belong to one family of salts. For example, calcium chloride (CaCl2) and calcium sulphate (CaSO4) belong to the same family of salts called ‘calcium salts’ because they both contain the same positively charged ions, calcium ions (Ca2+). Similarly, zinc sulphate (ZnSO4) and copper sulphate (CuSO4) belong to the same family of salts called ‘sulphate salts’ because they both contain the same negatively charged ions, sulphate ions (SO42-).
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संबंधित प्रश्न
From the list of the following salts choose the salt that most appropriately fits the
description is given in the following:
[AgCl, MgCl2, NaHSO4, PbCO3, ZnCO3, KNO3, Ca(NO3)2]
On heating this salt, a brown colored gas is evolved.
The aqueous solution of one of the following salts will turn red litmus to blue. This salt is:
(a) potassium sulphate
(b) sodium sulphate
(c) sodium chloride
(d) potassium carbonate
Give one example of a salt which gives an aqueous solution having:
pH more than 7
name two salts which are acidic.
Give four substances which contain water of crystallization and write their common name.
Taking sodium carbonate as an example, give the meaning of the following terms: Anhydrous.
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.
Copy and complete the following table which refers to the action of heat on the carbonate:
| Carbonate | Colour of residue on cooling |
| Zinc Carbonate |
The chemical name of plaster of Paris is ______.
What are hygroscopic substances?
