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प्रश्न
What is meant by ‘a family of salts’? Explain with examples.
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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 \[\ce{(SO^{2-}_{4})}\].
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संबंधित प्रश्न
What are the two main ways in which common salt (sodium chloride) occurs in nature?
Give any two uses of common salt (sodium chloride).
Name the raw material used for the production of caustic soda.
Complete and balance the following chemical equation:
\[\ce{NaCl_{(aq)} + H2O_{(l)} ->[Electricity]}\]
A salt whose aqueous solution will have a pH of more than 7 will be ______.
P and Q are aqueous solutions of sodium chloride and sodium hydroxide, respectively. Which of these will turn:
- blue litmus red?
- red litmus blue?
When the concentrated aqueous solution of substance X is electrolysed, then NaOH, Cl2 and H2 are produced. Name the substance X. What is the special name of this process?
Give one example of a salt which gives an aqueous solution having:
pH less than 7
A salt X when dissolved in distilled water gives a clear solution which turns red litmus blue. Explain the phenomenon.
How many molecules of water of crystallisation (per formula unit) are present in:
Copper sulphate crystals
name two salts which are basic.
Define the following term:
Efflorescence
What is deliquescence? What name is given to the compounds exhibiting such property?
Taking sodium carbonate as an example, give the meaning of the following terms:
Water of crystallization
Taking sodium carbonate as an example, give the meaning of the following terms:
Anhydrous
Write any five uses of salts.
One of the constituents of baking powder is sodium hydrogencarbonate. The other constituent is :
What are hygroscopic substances?
You are provided with the list of chemicals mentioned below in the box:
| Sodium hydroxide solution, copper carbonate, zinc, hydrochloric acid, copper, dilute sulphuric acid, chlorine, iron |
Using suitable chemicals from the list given, write a balanced chemical equation for the preparation of the salt mentioned below:
Ferric chloride
