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प्रश्न
Give the formula of the following gas:
Sulphur dioxide
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उत्तर
Sulphur dioxide – SO2
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संबंधित प्रश्न
Give the names and symbols of five familiar substances which you think are elements.
Why is the symbol S for sulphur, but Na for sodium and Si for silicon?
Give the symbol and the number of atoms of the following elements present in carbon dioxide.
Select the correct answer from the choice given below.
The symbol of mercury is
Give the symbol of the following element:
Mercury
State the type of element for the following:
Oxygen
Write the chemical formula of the following:
zinc oxide
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).
Oxide
The chemical symbol for sodium is
Write a note on Greem symbols.
