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प्रश्न
Differentiate hydrate and anhydrous salts with examples.
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उत्तर
| Property | Hydrate Salts | Anhydrous Salt |
| Definition | Salts that contain water molecules as part of their crystal structure. | Salts that do not contain water molecules in their structure. |
| Water Content | Contain a fixed number of water molecules (water of crystallization). | Do not contain any water molecules. |
| Appearance | Often appear colored and crystalline. | Usually powdery and may appear white or dull. |
| Example | Copper sulphate pentahydrate (\[\ce{CuSO4.5H2O}\]) | Heating of Copper sulphate pentahydrate (\[\ce{CuSO4.5H2O}\]) produce anhydrous copper sulphate (\[\ce{CuSO4}\]) |
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संबंधित प्रश्न
Identify the substance underlined, in the following case
A solid formed by reaction of two gases, one of which is acidic and the other basic in nature
Which of the following salt has a blue colour and why?
CuSO4.5H2O or CuSO4
Common salt is obtained from sea-water by the process of ______.
What happens when copper sulphate crystals are heated strongly? Explain with the help of an equation.
What is meant by ‘a family of salts’? Explain with examples.
What is meant by ‘hydrated’ salts? Explain with examples.
The number of molecules of water of crystallisation present in washing soda crystals is ______.
The salt whose aqueous solution will have no effect on either red litmus or blue litmus is ______.
Taking sodium carbonate as an example, give the meaning of the following terms:
Water of crystallization
Salts A, B, C, D and E undergo reactions (i) to (v) respectively. Identify the anion present in these salts on the basis of these reactions.
- When silver nitrate solution is added to a solution of A, a white precipitate, insoluble in dilute nitric acid, is formed.
- The addition of dilute hydrochloric acid to B produces a gas which turns lead acetate black on paper.
- When a freshly prepared solution of ferrous sulphate is added to a solution of C and concentrated sulphuric acid is gently poured from the side of the test tube, a brown ring is formed.
- When dilute sulphuric acid is added to D, a gas is produced which turns acidified potassium dichromate solution from orange to green.
- The addition of dilute hydrochloric acid to E produces effervescence. The gas produced turns lime water milky but does not affect acidified potassium dichromate solution.
