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प्रश्न
A particle P has 18 electrons, 20 neutrons and 19 protons. This particle must be :
विकल्प
a molecule
a binary compound
an anion
a cation
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उत्तर
cation
Particle P must be a cation.
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संबंधित प्रश्न
Write the symbols and valencies of the following radicals:
- Magnesium ion
- Ammonium
- Carbonate
- Nitrate
- Oxide
- Bisulphate
- Aluminium ion
The valency of calcium is 2. Write the valencies of other radical in the following :
- CaO
- Ca(OH)2
- CaC03
- CaCl2
Fill in the following blank with suitable word:
A potassium ion has positive charge because it contains less............... than.....................
A particle X has 17 protons, 18 neutrons and 18 electrons. This particle is most likely to be :
Write the basic radicals and acidic radicals of the following and then write the chemical formulae of these compound.
Magnesium phosphate
Write the basic radicals and acidic radicals of the following and then write the chemical formulae of these compound.
Sodium thiosulphate
Write the basic radicals and acidic radicals of the following and then write the chemical formulae of these compound.
Potassium manganate
Complete the following table.
|
Acid Radicals `→` |
Chloride |
Nitrate |
Sulphate |
Carbonate |
Hydroxide |
Phosphate |
|
Basic Radicals `↓` |
||||||
|
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?
Carbide
State if the following element or radical is divalent?
Permanganate
