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प्रश्न
Write the chemical formula of the following:
calcium sulphide
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उत्तर
CaS
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संबंधित प्रश्न
Give a reason why elements are tabulated in a table called the ‘Periodic table’.
Give the symbol of the following element:
Sulphur [sulphide]
Give the symbol of the following element:
Xenon
Give the symbol of the following element:
Phosphorus
State the type of element for the following:
Oxygen
State the type of element for the following:
Boron
State the valency of the following metallic element and write symbol with the valency
Chromium
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).
Bromide
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
What does the symbol '(l)' present in a chemical equation, mean?
