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प्रश्न
Write the constituent elements and their symbols for the following compounds.
- Carbon monoxide
- Washing soda
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उत्तर
| Compound | Symbols | Constituent elements |
| Carbon monoxide | (CO) | Carbon and oxygen |
| Washing soda | (Na2CO3) | Sodium, carbon, and oxygen |
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संबंधित प्रश्न
An atom of an element is denoted by a “symbol” Explain the meaning of the term ‘symbol’. State a reason for representing the following element by its symbol.
Helium by ‘He’
Give the symbol and the number of atoms of the following elements present in carbon dioxide.
Give the symbol and the number of atoms of the following elements present in zinc chloride.
State the type of element for the following:
Sodium
State the type of element for the following:
Aluminium
Give the formula of the following gas:
Hydrogen chloride
Give a reason – Magnesium [2, 8, 2] has valency 2+.
Certain metal exhibit variable valencies which include valencies: 1+, 2+, 3+, and 4+.
State the variable valency of the following metal.
Lead
write symbol with the variable valency
State whether the following ion or radical given below of a non-metallic element exhibits valency: 1–, 2– or 3–. (write the ion or radical with the correct valency).
Bisulphate
Define Alchemy.
