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प्रश्न
Give one word for the following statement:
Water molecules in loose chemical combination with other substances.
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उत्तर
Water molecules in loose chemical combination with other substances. - Water of crystallization
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संबंधित प्रश्न
Give two examples of Crystalline anhydrous substances.
Give one word for the following statement:
A property due to which a substance absorbs water without dissolving.
Give the names and formulae of two substances
Anhydrous substance
Differentiate the function of concentrated sulphuric acid as a drying agent & as a dehydrating agent. Is fused calcium chloride a dehydrating or a desiccating agent. Give reasons.
Match the substances in List I with the appropriate answer in List II.
| List I | List II |
| 1. Green vitriol | A: Permanent hardness in water |
| 2. Paint | B: Hygroscopic |
| 3. Magnesium chloride | C: Temporary hardness in water |
| 4. Magnesium bicarbonate | D: Heptahydrate |
| 5. Calcium oxide | E: Colloidal |
Differentiate between hydrated and anhydrous crystals with examples. State three defined changes that occur when hydrated copper sulphate is heated.
Select the correct word from the words in option to complete the sentence:
Efflorescence occurs when the vapour pressure of the hydrated crystals is ____ than the vapour pressure of the atmospheric humidity.
Select the correct answer from the choice given in the options.
An anhydrate of a heptahydrate salt _____.
Name or state the following:
A liquid hydroscopic substance.
Define Hydrated salt.
