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प्रश्न
The valency of calcium is 2. Write the valencies of other radical in the following :
- CaO
- Ca(OH)2
- CaC03
- CaCl2
उत्तर
- O= 2
- OH = 1
- CO3 = 2
- Cl = l
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संबंधित प्रश्न
Name the following radicals :
SO42
Name the following radicals :
HC03
Write the names of ZnS compounds :
Define ‘formula mass’ of a compound.
Fill in the following blank with suitable word:
The particle which is formed by the loss or gain of electrons by an atom is called..............
Write the basic radicals and acidic radicals of the following and then write the chemical formulae of these compound.
Calcium silicate
Write the basic radicals and acidic radicals of the following and then write the chemical formulae of these compound.
Stannic phosphate
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?
Nitride
Atoms that carry positive or negative charges are called ______.
