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प्रश्न
Write the symbols and valencies of the following radicals:
- Magnesium ion
- Ammonium
- Carbonate
- Nitrate
- Oxide
- Bisulphate
- Aluminium ion
उत्तर
| Elements | Symbols | Valencies | |
| (a) | Magnesium ion | `"Mg"^(2+)` | 2 |
| (b) | Amonium | `"NH"_4^+` | 1 |
| (c) | carbonate | `"CO"_3^-2` | 2 |
| (d) | Nitrate | `"NO"_3^-` | 1 |
| (e) | Oxide | `"O"^(2-)` | 2 |
| (f) | Bisulphate | `"HOS"_4^-` | 1 |
| (g) | Aluminium ion | `"AI"^(3+)` |
3 |
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Write the basic radicals and acidic radicals of the following and then write the chemical formulae of these compound.
Nickel bisulphate
Complete the following table.
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Acid Radicals `→` |
Chloride |
Nitrate |
Sulphate |
Carbonate |
Hydroxide |
Phosphate |
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Basic Radicals `↓` |
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Magnesium |
MgCl2 |
Mg(NO3)2 |
MgSO4 |
MgCO3 |
Mg(OH)2 |
Mg3(PO4)2 |
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Sodium |
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Zinc |
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Silver |
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Ammonium |
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Calcium |
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Iron (II) |
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Potassium |
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State if the following element or radical is divalent?
Sulphite
