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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
The symbols of the elements cobalt, aluminium, helium and sodium respectively written by a student are as
follows. Which symbol is the correct one ?
An element which can exhibit valencies of 2, 4 and 6 can be :
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 |
State what a chemical formula denotes.
State the type of element for the following:
Aluminium
Give three reasons why – carbon dioxide is considered a compound, while carbon – an element.
Write the radical of the following valency:
Aluminium
Write the radical of the following valency:
Sulphur [Sulphide]
State the valency of the following metallic element and write symbol with the valency
Sodium
State the valency of the following metallic element and write symbol with the valency
Chromium
