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प्रश्न
Give the formula of the following gas:
Nitrous oxide
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उत्तर
Nitrous oxide – N2O
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संबंधित प्रश्न
A student wants to have 3.011 × 1023 atoms each of magnesium and carbon elements. For this purpose, he will have to weigh :
Match the metallic elements – with their correct symbols Metallic elements
| Metallic elements | Symbol |
| (a) Potassium | (1) Ca |
| (b) Sodium | (2) Zn |
| (c) Calcium | (3) Pb |
| (d) Magnesium | (4) Hg |
| (e) Zinc | (5) Cu |
| (f) Aluminum | (6) Au |
| (g) Iron | (7) K |
| (h) Lead | (8) Fe |
| (i) Copper | (9) Al |
| (j) Mercury | (10) Na |
| (k) Silver | (11) Mg |
| (l) Platinum | (12) Pt |
| (m) Gold | (13) Ag |
Give the symbol of the following element:
Xenon
State the type of element for the following:
Sodium
Write the radical of the following valency:
Chlorine [Chloride]
Write the radical of the following valency:
Carbonate
Give the formula of the following gas:
Ammonia
Give the formula of the following gas:
Sulphur dioxide
Name three metals whose symbols are derived from the first letter of the name of the element.
Describe the different ways in which we can write the symbols of elements. Give appropriate examples.
