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प्रश्न
State the valency of the following metallic element and write symbol with the valency
Magnesium
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उत्तर
Metals have positive valency 1, 2 or 3,
| Element | Symbol | Valency |
| Magnesium | \[\ce{Mg}\] | \[\ce{Mg^2+}\] |
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संबंधित प्रश्न
Select elements and compounds from the following list: Iron, plaster of paris, chalk, common salt, copper, aluminium, calcium oxide, cane sugar, carbon, silica, sodium sulphate, uranium, potassium carbonate, silver, carbon dioxide.
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Write the formula of the compound formed – given symbols and combining power or capacity (valency) of the following element in the compound.
Na1+ Cl1-
In the chemical word equation –
Zinc + Sulphuric acid → Zinc sulphate + Hydrogen.
State the reactants and products of the above reaction. What does the arrow indicate?
State the type of element for the following:
potassium
State the type of element for the following:
Xenon
Name the following:
An acid whose formula is ‘H2CO3’.
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State the variable valency of the following metal.
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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).
Hydroxide
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).
Bicarbonate
