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प्रश्न
The molecular formula of green vitriol is MgSO4.7H2O.
पर्याय
True
False
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उत्तर
False
Correct Statement: The molecular formula of green vitriol is FeSO4 .7H2O.
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संबंधित प्रश्न
Give two examples of Crystalline anhydrous substances.
The sticky substance formed when soap is added to hard water is ______.
Give one word for the following statement:
A substance which does not contain water .
Give one word for the following statement:
A property due to which a substance absorbs water without dissolving.
Give one word for the following statement:
Water molecules in loose chemical combination with other substances.
The substance that can remove hydrogen and oxygen atoms in the ratio of 2:1(in the form of water) from the compound.
What are drying or desiccating agents? Give examples.
What are hydrous substances? Explain with examples.
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 |
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.
