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प्रश्न
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).
Sulphide
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उत्तर
| Name | Symbol | Ion | Valency |
| Sulphide | \[\ce{S}\] | \[\ce{S^{2-}}\] | −2 |
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संबंधित प्रश्न
Give two examples of the following :
Solid + Solid mixture
Match the symbols of non-metallic elements with their correct combining power or capacity.
(a) O
(b) S
(c) Cl
Combining power or capacity A : 3; B : 2; C : 1. (negative valencies)
State which element exists in the highest percentage in earth’s crust.
Elements are mainly classified into metals and non-metals. State six properties of metals which differ from non-metals.
Give the symbol of the following element:
Iodine
State the type of element for the following:
Mercury
Write the radical of the following valency:
Potassium
Write the chemical formula of the following:
calcium sulphide
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).
Iodide
In the same way in chemistry, each element is denoted by a ______.
