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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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उत्तर
| Elements | Compounds |
| Iron | Plaster of paris |
| Copper | Chalk |
| Aluminium | Common salt |
| Carbon | Calcium oxide |
| Uranium | Cane sugar |
| Silver | Silica |
| Sodium sulphate | |
| Potassium carbonate | |
| Carbon dioxide |
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संबंधित प्रश्न
What do the following symbol stand for?
H
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 |
State the type of element for the following:
Fluorine
State the type of element for the following:
Calcium
Write the radical of the following valency:
Carbonate
Give the formula of the following acid:
Hydrochloric
State the valency of the following metallic element and write symbol with the valency
Potassium
Name three metals whose symbols are derived: from their Latin names.
What does the symbol '⇌' present in a chemical equation, mean?
Which of the following would weigh the highest?
