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प्रश्न
Give the name of the element present in the following compound:
Baking powder
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उत्तर
- Compound - Baking powder
- Chemical formula - NaHCO3
- Elements present - Sodium, Hydrogen, Carbon, Oxygen
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संबंधित प्रश्न
Write down the name of a compound represented by the following formula:
CaCl2
Write down the name of a compound represented by the following formula:
CaCO3
Define: Mass number :
Write the formulae of the following compounds. Also name the elements present in them.
- Water
- Ammonia
- Methane
- Sulphur dioxide
- Ethanol
What is the difference between the molecule of an element and the molecule of a compound? Give one example of each.
What are (i) ionic compounds, and (ii) molecular compounds ? Give two examples of each type of compounds.
The cation of an element has :
An element A forms an oxide A2O5.
What is the valency of element A ?
Classify the following molecules as the molecules of element or compound
| 1. |  |
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| 2. |  |
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| 3. |  |
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| 4. |  |
Write any two classifications of a molecule.
