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प्रश्न
Write the chemical formula of the following:
aluminium chloride
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उत्तर
AIC3
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संबंधित प्रश्न
Give the names and symbols of five familiar substances which you think are elements.
The formula of the sulphate of an element M is M2(SO4)3
Write the formula of it
Phosphate
Match the noble gases – with their correct symbols:
| Noble gases | Symbols |
| (a) Helium | (1) Ar |
| (b) Neon | (2) Xe |
| (c) Argon | (3) Rn |
| (d) Krypton | (4) He |
| (e) Xenon | (5) Kr |
| (f) Radon | (6) Ne |
Give the symbol of the following element:
Xenon
Give the symbol of the following element:
Silicon
Give the formula of the following gas:
Ammonia
State the valency of the following metallic element and write symbol with the valency
Potassium
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).
Dichromate
Name three metals whose symbols are derived from the first letter of the name of the element.
Fill in the blank with the correct word from the options given below:
A symbol represents a short form of a / an ________.
